Many styles in Bootstrap3 require us to explore and learn. When making a search box similar to Baidu, you don’t know how to do it at the beginning. In fact, it is very simple. You can use inline icons to achieve it.
<div class="input-group"> <input type="text" class="form-control input-lg"><span class="input-group-addon btn btn-primary">search</span> </div>
By inlining the span into the input box through '.input-group', we only need to add the button style to this span to achieve a very good search box.
The above is the complete description of the method of making search box styles of Bootstrap3 introduced to you. I hope it will be helpful to you. If you want to know more, please pay attention to me!