CSS bit element after

In combination with content, there is no content that has no effect. (You can define the content as empty)

eg

Content can be a string, a picture (Content:url (a.jpg)), or a property

<div class= "box" > Meng Meng </div .box:after{ content: "Du Xiaoyu"; color:red; " <div class= "box" id= "AAA" > Meng Meng </div> .box:before{ content:attr (id); "

The inserted element defaults to the inline element, but can be changed by display

eg

<div class= "box" > Meng Meng </div> . box:after{ Content: ""; width:100px; height:100px; border:1px solid #faa; Display:block; }

Used to clear floating

eg

is added on the parent element. Clearfix .clearfix: After { Display:block; Clear:both; " for ie 6/7 (trigger haslayout) .clearfix{ zoom:1;

CSS bit element after