The external div adapts to the height of the internal tag, setting the minimum height and maximum height_html/css

The external div adapts to the height of the internal tag, setting the minimum height and maximum height_html/css_WEB-ITnose

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Release： 2016-06-24 11:39:54

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1. div adaptive height: In front-end development, it is often necessary to make the outer div automatically adapt to the height of the internal tags and content. The internal tags may be

1. Clear the float attribute with a pseudo object

 1 <!doctype html> 2 <html lang="en"> 3  <head> 4   <meta charset="UTF-8"> 5   <title>Document</title> 6   <!-- CSS --> 7   <style type="text/css"> 8     #wrap2{     9         width: auto;10         height: auto;11         min-height: 250px;/*设置最小高度*/12         max-height: 500px;/*设置最大高度*/13         overflow: hidden;/*内容超出后隐藏*/14         border: 2px solid yellow;15     }16     #wrap2:after{    17         content: "";18         visibility: hidden;19         display: block;20         clear: both;21     }22     #inner2{    23         width: 200px;24         height: 200px;25         border: 1px solid black;26         float: right;27     }28   </style>29  </head>30  <body>31   <div id="wrap2" class="">32     <div id="inner2" class=""></div>33   </div>34  </body>35 </html>36

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2. Use Empty div to clear the float attribute

 1 <!doctype html> 2 <html lang="en"> 3  <head> 4   <meta charset="UTF-8"> 5   <title>Document</title> 6   <!-- CSS --> 7   <style type="text/css"> 8     #wrap1{     9         width: auto;10         height: auto;11         border: 2px solid yellow;12     }13     #inner1{    14         width: 200px;15         height: 200px;16         border: 1px solid black;17         float: right;18     }19   </style>20  </head>21  <body>22   <div id="wrap1">23     <div id="inner1"></div>24     <div style="clear:both;"></div> <!-- 在外层div的底部加一个空的div标签，并设置样式为clear:both; -->25   </div>26  </body>27 </html>

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2. Set the minimum and maximum height for the div:

1 #wrap1{    2         width: auto;3         min-height: 100px;4         max-height: 500px;5         overflow: hidden;6         border: 2px solid yellow;7     }

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