<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title> <style> .top { margin: 0 auto; width: 1000px; /* height: 300px; */ background-color: pink; } .bottom { height: 100px; background-color: green; } .left { float: left; width: 200px; height: 300px; background-color: #ccc; } .right { float: right; width: 790px; height: 300px; background-color: skyblue; } .clearfix { /* 清除左右两侧浮动的影响 */ clear: both; } </style> </head> <body> <!-- 父子级标签, 子级浮动, 父级没有高度, 后面的标准流盒子会受影响, 显示到上面的位置 --> <div class="top"> <div class="left"></div> <div class="right"></div> <div class="clearfix"></div> </div> <div class="bottom"></div> </body> </html>
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