!DOCTYPE html html lang="en" head meta charset="UTF-8" titl
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>demo</title>
<style type="text/css" media="screen">
.d1{
width:300px;
height:150px;
border:1px solid #000;
padding:10px;
/*box-sizing:border-box; 规定宽和高从border开始算起*/
/*box-sizing:content-box; 默认 规定宽和高只是content部分不包孕padding和border*/
}
.d2{
width:100%;
height:100%;
background: red;
}
</style>
</head>
<body>
<div>
<div>
</div>
</div>
</body>
</html>
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![[转]Node.js中package.json中^和~的区别](/uploads/allimg/200519/054J34453_lit.png "[转]Node.js中package.json中^和~的区别")