Do you know that CSS has a content property? What's the effect? What is the application? Can pseudo-class clear floating

know. the Content property of the CSS is specifically applied to the before/after pseudo-element, which is used to insert the generated content. The most common application is to use pseudo-classes to clear floats.

. clearfix:after {    content: ".";//the content attribute Display:block is used here    ;     height:0;    Visibility:hidden;     Clear:both; }.clearfix {     *zoom:1;}

After pseudo-elements generate block-level elements of a point after the element through the content, and then use Clear:both to clear the float.

So the question continues, Do you know the CSS counter (sequential numeric characters are automatically incremented)? How do I implement CSS counters with CSS content properties?

Answer:The CSS counter is implemented by setting Counter-reset, counter-increment two properties, and counter ()/counters () a method with the After/before pseudo-class.

　　

Do you know that CSS has a content property? What's the effect? What is the application? Can pseudo-class clear floating