css 边框
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>css边框</title>
<style>#box1{boder:#ccc solid 1px;width:500px;height:200px}</style>
</head>
<body>
<div id="box1"></div>
</body>
</html><!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>css边框</title>
<style>#box1{boder:#ccc solid 1px;width:500px;height:200px}</style>
</head>
<body>
<div id="box1"></div>
</body>
</html>