To achieve the same effect with less code should be our ultimate goal of writing programs, and of course readability cannot be lost. existSeamless scrolling animation implementation based on javascript 1The last running box, I've already done this exploration. However, if you change the soup or not, you will still make a fuss on scrollTop/scrollLeft and offsetTop/offsetLeft. The general idea is basically like this: let an element move in a certain direction as a whole, so that the content (picture or text) inside it moves along, and when the element moves to a certain distance, it returns to the origin. In order to prevent the content from disappearing while it is moved, we need two sets of the same content. In the first part, the second set of content is dynamically generated and copied into another sibling element, which we need to take a few twists and turns to get everything together horizontally when scrolling horizontally. I just thought, would it be better if the second set of contents were directly added to the same elements? At least write less CSS. There is another disadvantage to using scrollTop/scrollLeft to implement scrolling, which has strict regulations on the width and height of the parent container. For example, if we want to scroll up and down the picture, ul is used as a container and the picture of li is scrolling content, then the height of ul is at least twice the height of the picture (we assume that the size of each picture is equal), otherwise we will not be able to move. In view of this, I have developed a new generation of seamless scrolling functions.
<ul > <li> <a href="/rubylouvre/" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="o_s017.jpg" alt="Seamless scroll"/></a> <a href="/rubylouvre/" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="o_s018.jpg" alt="Seamless scroll"/></a> <a href="/rubylouvre/" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="o_s019.jpg" alt="Seamless scroll"/></a> <a href="/rubylouvre/" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="o_s020.jpg" alt="Seamless scroll"/></a> <a href="/rubylouvre/" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="o_s021.jpg" alt="Seamless scroll"/></a> <a href="/rubylouvre/" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="o_s022.jpg" alt="Seamless scroll"/></a> <a href="/rubylouvre/" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="o_s023.jpg" alt="Seamless scroll"/></a> </li> </ul>
#marquee ,#marquee li {
padding:0;
margin:0;
}
#marquee {
position:relative;
list-style:none;
height:150px;
width:200px;
overflow:hidden;
border:10px solid #369;
}
#marquee li {
position:absolute;
}
#marquee img {
display:block;
border:0;
}
var Marquee = function(id){
try{("BackgroundImageCache", false, true);}catch(e){};
var container = (id),
slide = ("li")[0],
speed = arguments[1] || 10,
delta = 0,//The current scrolling position critical = ;//The critical value += ;
var rolling = function(){
delta == -critical ? delta = 0 : delta--;
= delta + "px";
}
var timer = setInterval(rolling,speed)//Set the timer =function() {clearInterval(timer)}//When the mouse is moved to marquee, clear the timer and stop scrolling =function() {timer=setInterval(rolling,speed)}//Reset the timer when the mouse is moved away}
= function(){
Marquee("marquee");
}
<!doctype html>
<title>javascriptSeamless scrolling by Situ Zhengmei</title>
<meta charset="utf-8"/>
<meta name="keywords" content="javascript seamless scroll by Situ Zhengmei" />
<meta name="description" content="javascript seamless scroll by Situ Zhengmei" />
<base href="/cnblogs_com/rubylouvre/199042/" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >
<style type="text/css">
h1 {
font:400 16px/1 "Microsoft YaHei",KaiTi_GB2312,SimSun
}
#marquee ,#marquee li {
padding:0;
margin:0;
}
#marquee {
position:relative;
list-style:none;
height:150px;
width:200px;
overflow:hidden;
border:10px solid #369;
}
#marquee li {
position:absolute;
}
#marquee img {
display:block;
border:0;
}
</style>
<script type="text/javascript">
var Marquee = function(id){
try{("BackgroundImageCache", false, true);}catch(e){};
var container = (id),
slide = ("li")[0],
speed = arguments[1] || 10,
delta = 0,//The current scrolling position critical = ;//The critical point += ;
var rolling = function(){
delta == -critical ? delta = 0 : delta--;
= delta + "px";
}
var timer = setInterval(rolling,speed)//Set the timer =function() {clearInterval(timer)}//When the mouse is moved to marquee, clear the timer and stop scrolling =function() {timer=setInterval(rolling,speed)}//Reset the timer when the mouse is moved away }
= function(){
Marquee("marquee");
}
</script>
<h1>javascriptSeamless scrolling(Scroll up) by Situ Zhengmei</h1>
<base href="/cnblogs_com/rubylouvre/199042/" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >
<ul >
<li>
<a href="/rubylouvre/" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="o_s017.jpg" alt="Seamless scroll by Situ Zhengmei"/></a>
<a href="/rubylouvre/" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="o_s018.jpg" alt="Seamless scroll by Situ Zhengmei"/></a>
<a href="/rubylouvre/" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="o_s019.jpg" alt="Seamless scroll by Situ Zhengmei"/></a>
<a href="/rubylouvre/" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="o_s020.jpg" alt="Seamless scroll by Situ Zhengmei"/></a>
<a href="/rubylouvre/" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="o_s021.jpg" alt="Seamless scroll by Situ Zhengmei"/></a>
<a href="/rubylouvre/" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="o_s022.jpg" alt="Seamless scroll by Situ Zhengmei"/></a>
<a href="/rubylouvre/" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="o_s023.jpg" alt="Seamless scroll by Situ Zhengmei"/></a>
</li>
</ul>
It is also easy to scroll down, but at the beginning it is positioned between the first set of content and the second set of content, that is, we need to change it to a negative number to move downwards the overall, and then slowly move upwards.
<!doctype html>
<title>javascriptSeamless scrolling by Situ Zhengmei</title>
<meta charset="utf-8"/>
<meta name="keywords" content="javascript seamless scroll by Situ Zhengmei" />
<meta name="description" content="javascript seamless scroll by Situ Zhengmei" />
<base href="/cnblogs_com/rubylouvre/199042/" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >
<style type="text/css">
h1 {
font:400 16px/1 "Microsoft YaHei",KaiTi_GB2312,SimSun
}
#marquee ,#marquee li {
padding:0;
margin:0;
}
#marquee {
position:relative;
list-style:none;
height:150px;
width:200px;
overflow:hidden;
border:10px solid #B45B3E;
}
#marquee li {
position:absolute;
}
#marquee img {
display:block;
border:0;
}
</style>
<script type="text/javascript">
var Marquee = function(id){
try{("BackgroundImageCache", false, true);}catch(e){};
var container = (id),
slide = ("li")[0],
speed = arguments[1] || 10,
critical = ,//The critical value delta = -critical;
+= ;
var rolling = function(){
delta == 0 ? delta = -critical : delta++;
= delta + "px";
}
var timer = setInterval(rolling,speed)//Set the timer =function() {clearInterval(timer)}//When the mouse is moved to marquee, clear the timer and stop scrolling =function() {timer=setInterval(rolling,speed)}//Reset the timer when the mouse is moved away }
= function(){
Marquee("marquee");
}
</script>
<h1>javascriptSeamless scrolling(Scroll down) by Situ Zhengmei</h1>
<base href="/cnblogs_com/rubylouvre/199042/" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >
<ul >
<li>
<a href="/rubylouvre/" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="o_s017.jpg" alt="Seamless scroll"/></a>
<a href="/rubylouvre/" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="o_s018.jpg" alt="Seamless scroll"/></a>
<a href="/rubylouvre/" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="o_s019.jpg" alt="Seamless scroll"/></a>
<a href="/rubylouvre/" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="o_s020.jpg" alt="Seamless scroll"/></a>
<a href="/rubylouvre/" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="o_s021.jpg" alt="Seamless scroll"/></a>
<a href="/rubylouvre/" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="o_s022.jpg" alt="Seamless scroll"/></a>
<a href="/rubylouvre/" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="o_s023.jpg" alt="Seamless scroll"/></a>
</li>
</ul>
It is also easier to achieve horizontal movement than the first part, the structural layer does not need to be changed at all, and the presentation layer is also rarely changed.
#marquee ,#marquee li {
padding:0;
margin:0;
}
#marquee {
position:relative;
list-style:none;
height:150px;
width:200px;
overflow:hidden;
border:10px solid #B45B3E;
}
#marquee li {
position:absolute;
width:1000%;/*★★Newly added★★*/
}
#marquee a {
float:left;/*★★Newly added★★*/
}
#marquee img {
display:block;
border:0;
}
The difficulty is how to obtain that critical value, that is, the position sandwiched between the first set of contents and the second set of contents. Since we don't have an element in the second set of contents, we need to start with the scrolling object. The scrolling objects are all elements a, and we need to calculate the distance from the first element a of the second set of contents to the left of the parent element. This value is the critical value we require. It will be easy to understand this.
//*************slightly********* += ;
var item = ("a"),
critical = item[/2].offsetLeft,//The critical value//*************slightly*********
<!doctype html>
<title>javascriptSeamless scrolling by Situ Zhengmei</title>
<meta charset="utf-8"/>
<meta name="keywords" content="javascript seamless scroll by Situ Zhengmei" />
<meta name="description" content="javascript seamless scroll by Situ Zhengmei" />
<base href="/cnblogs_com/rubylouvre/199042/" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >
<style type="text/css">
h1 {
font:400 16px/1 "Microsoft YaHei",KaiTi_GB2312,SimSun
}
#marquee ,#marquee li {
padding:0;
margin:0;
}
#marquee {
position:relative;
list-style:none;
height:150px;
width:200px;
overflow:hidden;
border:10px solid #8080C0;
}
#marquee li {
position:absolute;
width:1000%;/*Newly added*/
}
#marquee a {
float:left;/*Newly added*/
}
#marquee img {
display:block;
border:0;
}
</style>
<script type="text/javascript">
var Marquee = function(id){
try{("BackgroundImageCache", false, true);}catch(e){};
var container = (id),
slide = ("li")[0],
speed = arguments[1] || 10;
+= ;
var item = ("a"),
critical = item[/2].offsetLeft,//The critical value delta = 0;
var rolling = function(){
delta == -critical ? delta = 0 : delta--;
= delta + "px";
}
var timer = setInterval(rolling,speed)//Set the timer =function() {clearInterval(timer)}//When the mouse is moved to marquee, clear the timer and stop scrolling =function() {timer=setInterval(rolling,speed)}//Reset the timer when the mouse is moved away }
= function(){
Marquee("marquee");
}
</script>
<h1>javascriptSeamless scrolling(Scroll to the left) by Situ Zhengmei</h1>
<base href="/cnblogs_com/rubylouvre/199042/" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >
<ul >
<li>
<a href="/rubylouvre/" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="o_s017.jpg" alt="Seamless scroll"/></a>
<a href="/rubylouvre/" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="o_s018.jpg" alt="Seamless scroll"/></a>
<a href="/rubylouvre/" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="o_s019.jpg" alt="Seamless scroll"/></a>
<a href="/rubylouvre/" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="o_s020.jpg" alt="Seamless scroll"/></a>
<a href="/rubylouvre/" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="o_s021.jpg" alt="Seamless scroll"/></a>
<a href="/rubylouvre/" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="o_s022.jpg" alt="Seamless scroll"/></a>
<a href="/rubylouvre/" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="o_s023.jpg" alt="Seamless scroll"/></a>
</li>
</ul>
Below is scrolling to the right. Since they are all scripts with less than 20 lines, you should understand them by looking at the source code and will not be described in detail.
<!doctype html>
<title>javascriptSeamless scrolling by Situ Zhengmei</title>
<meta charset="utf-8"/>
<meta name="keywords" content="javascript seamless scroll by Situ Zhengmei" />
<meta name="description" content="javascript seamless scroll by Situ Zhengmei" />
<base href="/cnblogs_com/rubylouvre/199042/" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >
<style type="text/css">
h1 {
font:400 16px/1 "Microsoft YaHei",KaiTi_GB2312,SimSun
}
#marquee ,#marquee li {
padding:0;
margin:0;
}
#marquee {
position:relative;
list-style:none;
height:150px;
width:200px;
overflow:hidden;
border:10px solid #6cc;
}
#marquee li {
position:absolute;
width:1000%;
}
#marquee a {
float:left;
}
#marquee img {
display:block;
border:0;
}
</style>
<script type="text/javascript">
var Marquee = function(id){
try{("BackgroundImageCache", false, true);}catch(e){};
var container = (id),
slide = ("li")[0],
speed = arguments[1] || 10;
+= ;
var item = ("a"),//The critical point critical = item[/2].offsetLeft,
delta = -critical;
var rolling = function(){
delta == 0 ? delta = -critical : delta++;
= delta + "px";
}
var timer = setInterval(rolling,speed)//Set the timer =function() {clearInterval(timer)}//When the mouse is moved to marquee, clear the timer and stop scrolling =function() {timer=setInterval(rolling,speed)}//Reset the timer when the mouse is moved away }
= function(){
Marquee("marquee");
}
</script>
<h1>javascriptSeamless scrolling(Scroll to the right) by Situ Zhengmei</h1>
<base href="/cnblogs_com/rubylouvre/199042/" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >
<ul >
<li>
<a href="/rubylouvre/" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="o_s017.jpg" alt="Seamless scroll"/></a>
<a href="/rubylouvre/" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="o_s018.jpg" alt="Seamless scroll"/></a>
<a href="/rubylouvre/" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="o_s019.jpg" alt="Seamless scroll"/></a>
<a href="/rubylouvre/" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="o_s020.jpg" alt="Seamless scroll"/></a>
<a href="/rubylouvre/" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="o_s021.jpg" alt="Seamless scroll"/></a>
<a href="/rubylouvre/" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="o_s022.jpg" alt="Seamless scroll"/></a>
<a href="/rubylouvre/" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img src="o_s023.jpg" alt="Seamless scroll"/></a>
</li>
</ul>
We can combine the above four functions into one function, and the structure layer and presentation layer are scrolled upwards according to reference.
var Marquee = function(id){
try{("BackgroundImageCache", false, true);}catch(e){};
var container = (id),
slide = ("li")[0],
options = arguments[1] || {},
speed = || 10,
direction = || "left";
+= ;
var item = ("a"),
critical,delta,rolling,field;
if(direction == "left" || direction == "right"){
= "width:1000%";
for(var i=0 ,l=; i<l;i++){
item[i]. = "float:left";
}
field = "left";
critical = item[/2].offsetLeft;
}else if(direction == "up" || direction == "down"){
field = "top";
critical = item[/2].offsetTop;
}
if(direction == "up" || direction == "left"){
delta = 0;
rolling = function(){
delta == -critical ? delta = 0 : delta--;
[field] = delta + "px";
}
}else if(direction == "down" || direction == "right"){
delta = -critical;
rolling = function(){
delta == 0 ? delta = -critical : delta++;
[field] = delta + "px";
}
}
var timer = setInterval(rolling,speed)//Set the timer =function() {clearInterval(timer)}//When the mouse is moved to marquee, clear the timer and stop scrolling =function() {timer=setInterval(rolling,speed)}//Reset the timer when the mouse is moved away}
use:
Marquee("marquee",{speed:35,direction:"up"});
With this, it will be easier to implement another type of picture rotation. Let’s make a preview first. This article ends here.
This is the end of this article about seamless scrolling animation implementation 2 based on javascript. For more related javascript seamless scrolling content, please search for my previous articles or continue browsing the related articles below. I hope everyone will support me in the future!