Use the after pseudo-class to clear floats

In the past, when clearing floats, I always added

 <div style="clear:both;"></div>

after the element that I want to clear, or wrote it in the br tag to solve the problem, but this will Add unsemantic tags. The following is implemented using the after pseudo-class. It is compatible with multiple browsers.

.clearfix:after{
    content:"";
    display:block;
    height:0;
    clear:both;
    visibility:hidden;
}

is compatible with IE6 and IE7 because ie6 and ie7 cannot be used. after pseudo-class. Add the following code

 .clearfix{zoom:1}

Generally, if there is a float inside the parent layer, it may cause the height of the parent layer to be 0. Just add clearfix.

HTML：

 c7c162f4346c5f9b366c4224b512a308
     ef97f43c01124fc78febd898df2aef5eleft94b3e26ee717c64999d7867364b1b4a3
     d63265fd15dd0bd32166bea3d879ea48right94b3e26ee717c64999d7867364b1b4a3
 94b3e26ee717c64999d7867364b1b4a3

CSS:

.clearfix{zoom:1}    
.clearfix:after{
    content:"";
    display:block;
    height:0;
    clear:both;
    visibility:hidden;
}
.parent{
    background-color:red;
    width:120px;
}
.left{
    float:left;
    background-color:pink;
    height:60px;
}
.right{
    float:right;
    background-color:#abcdef;
}

More use after pseudo-class clearing For floating related articles, please pay attention to the PHP Chinese website!