Pure CSS realizes three-column layout (fixed on both sides, adaptive in the middle)_html/css_WEB-ITnose

After reading some online cases, I found it to be complicated, so I compiled an article to explain this.

Let me review it myself. Someone asked this question before, but I haven’t answered it yet. ＝＝

Look at the code:

html:

1 <div class="top">this is top</div>2 <div class="container">3     <div class="left">this is left</div>4     <div class="center">this is center</div>5     <div class="right">this is right</div>6 </div>7 <div class="footer">this is footer</div>

Then CSS:

 1 .top{ 2     width: 100%; 3     height: 40px; 4     background-color: #cccccc; 5 } 6 .footer{ 7     width: 100%; 8     height: 50px; 9     background-color: #abdc44;10 }11 /*左右固定，中间自适应*/12 /*Start*/13 .container{14     width: 100%;15     height: 100%;16     position: relative;17 }18 .left{19     position: absolute;20     left: 0;21     top: 0;22     width: 400px;23     height: 800px;24     background-color: black;25 }26 .center{27     width: auto;    /*如果没有这一句，那么，center这个div的文字就不会自动换行*/28     margin: 0 400px;29     height: 1000px;30     background-color: yellow;31 }32 .right{33     position: absolute;34     top: 0;35     right: 0;36     width: 400px;37     height: 900px;38     background-color: red;39 }40 /*End*/    

The end looks like this: