The key code is as follows:
<html> <head> <link rel="stylesheet" type="text/css" href=""> <script> =function(){ var sheet=[0]; //【New style rules】// ('.div1{font-size:16px;color:red;}',0); IE8 and above do not support //The first parameter is the style, and the second is the position of the style // ('.div1','font-size:20px;color:orange;font-weight:bold;',0);//IE all support //The first parameter is the style name, the second style position is the style rule, and the third is the style position. function insertCss(element,csName,position){//Cross-browser compatibility if(){ // When it is not IE, a function will be read, and when it is above IE8, undefined will be read(element+'{'+csName+'}',position); }else if(){ (element,csName,position); } } insertCss('.div1','font-size:16px;color:orange',0); //【Delete style rules】//(position); //Delete style Parameter is position //IE8 and above are not supported//(position); //Delete style Parameter is position//IE supportfunction deleteCss(position){//Cross-browser compatibilityif(){ (position); }else if(){ (position); } deleteCss(0); } } </script> </head> <body></body> </html>
The above is the new JavaScript style rules (recommended) introduced by the editor to you. I hope it will be helpful to you. If you have any questions, please leave me a message and the editor will reply to you in time. Thank you very much for your support for my website!