先上个高清无码图：
源码：
<!DOCTYPE html><html lang="en" xmlns="http://www.w3.org/1999/xhtml"><head> <meta charset="utf-8" /> <title></title> <link href="reset.css" rel="stylesheet" /> <!--重置默认样式,你可以把这句注释掉--> <style> div { line-height:60px; /*让字体垂直居中*/ } div.box { width: 100%; height: 60px; background: yellow; text-align: center; /*让字体水平居中*/ color: white; } div.box div.left, div.right { width: 60px; height: 60px; background: red; } div.box div.left { float: left; } div.box div.right { float: right; } div.box div.center { height: 60px; background: green; } </style></head><body> <div class="box"> <div class="left">左固定</div> <div class="right">右固定</div> <div class="center">中间填满</div> </div></body></html>
![[Web-Frontend] Node.js-Schnellstart](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
