简单div背景颜色

2015/12/14 15194 

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>div背景颜色</title>
<link href="div_back.css" type="text/css" rel="stylesheet">
</head>
<body>
<div id="div_back">此处显示div背景颜色</div>
</body>
</html>

编程技巧