abstrait：<!DOCTYPE html><head><meta charset="utf-8"><title>xxx</title><link rel="shortcut icon" type="image/x-icon" href="images/logo.png&quo
<!DOCTYPE html>
<head>
<meta charset="utf-8">
<title>xxx</title>
<link rel="shortcut icon" type="image/x-icon" href="images/logo.png">
<link rel="stylesheet" type="text/css" href="css/index.css">
<style>
ul li{list-style:none;width:100px;height:40px;line-height:40px;text-align:center;background-color:#ccc;margin:0px 1px;float:left;}
.mulu{width:100px;height:30px;line-height:30px;background-color:pink;float:left;margin:0px 1px;text-align:center;}
.clear{clear:both;}
</style>
</head>
<body>
<ul>
<li>導航1</li>
<li>導航2</li>
<li>導航3</li>
<li>導航4</li>
</ul>
<div class="clear"></div>
<div class="mulu"><span>子菜單1</span></div>
<div class="mulu"><span>子菜單2</span></div>
<div class="mulu"><span>子菜單3</span></div>
<div class="mulu"><span>子菜單4</span></div>
</body>
</html>
效果如下：
Professeur correcteur：西門大官人Temps de correction：2019-02-17 10:39:11
Résumé du professeur：作業(yè)寫的不錯，子菜單向左錯位了，檢查一下index.css中的樣式是否有影響