style ="clear:both"有什么用？

Question

我碰巧看到了div哪种风格clear:both!什么是使用clear的style？

<div style="clear:both">

Answer 1

clear:both 使元素下降到文档中前面的任何浮动元素下面.

您也可以使用clear:left或clear:right使其仅落在左侧或右侧浮动的元素下方.

+------------+ +--------------------+
|            | |                    |
| float:left | |   without clear    |
|            | |                    |
|            | +--------------------+
|            | +--------------------+
|            | |                    |
|            | |  with clear:right  |
|            | |  (no effect here,  |
|            | |   as there is no   |
|            | |   float:right      |
|            | |   element)         |
|            | |                    |
|            | +--------------------+
|            |
+------------+
+---------------------+
|                     |
|   with clear:left   |
|    or clear:both    |
|                     |
+---------------------+

Answer 2

只需添加到RichieHindle的回答,请Floatutorial,其中详细介绍了如何CSS浮动和结算工程.