圖片效果呈現出來了，可是右側right比左側left先加載是什么意思？該怎么修改?。?/h1>
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<title>混合布局編程挑戰</title>
<style type="text/css">
body{ margin:0; padding:0; font-size:30px; color:#fff}
.top{width:100%;height:100px;background:#cccccc;}
.main{width:auto;height:500px;background:#fc0201;}
.left{ width:200px;height:500px;background:#0000fe;float:left;}
.right{width:300px;height:500px;background:#9acc99;float:right;}
.foot{width:100%;height:100px;background:#ff6634;}
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</head>
<body>
<div class="top">top</div>
<div class="main">
? ? <div class="right">right</div>
? ? <div class="left">left</div>
</div>
<div class="foot">foot</div>
</body>
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<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>混合布局編程挑戰</title>
<style type="text/css">
body{ margin:0; padding:0; font-size:30px; color:#fff}
.top{width:100%;height:100px;background:#cccccc;}
.main{width:auto;height:500px;background:#fc0201;}
.left{ width:200px;height:500px;background:#0000fe;float:left;}
.right{width:300px;height:500px;background:#9acc99;float:right;}
.foot{width:100%;height:100px;background:#ff6634;}
</style>
</head>
<body>
<div class="top">top</div>
<div class="main">
? ? <div class="right">right</div>
? ? <div class="left">left</div>
</div>
<div class="foot">foot</div>
</body>
</html>
2018-08-01
右側比左側先加載就是指右側的代碼要寫在左側的前面