5.16
今天学习了css盒子模型.
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>W3Cschool教程(w3cschool.cn)</title>
<style>
div.ex
{
width:220px;
padding:10px;
border:5px solid gray;
margin:0px;
}
</style>
</head>
<body>
<img src="/attachments/cover/cover_cssref.jpeg" width="250" height="250" />
<div class="ex">上面的图片是250像素宽。这个元素的总宽度也是250px。</div>
</body>
</html>
