HTML + CSS replacement elements and non replacement elements, in need of friends can refer to.
elements, each element in the CSS, generated with the contents of the box (box), everyone called "box". But the different elements that is different, have occupied a whole line, a level one by one. For example: div span do not like the way.
what is a replacement element and a non replacement element?
to replace elements:
according to the elements and attributes of its tag
The replace element is the browser that determines the specific content.
For example: type= "text", this is a text input box for a rest time is not the same as the
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