<!DOCTYPE?html>
<html?lang="en">
<head>
????<meta?charset="UTF-8">
????<title>慕課網(wǎng)練習(xí)</title>
????<link?href="style.css"?rel="stylesheet"?type="text/css"?/>
</head>
<body>
????<div?id="01">第一個(gè)盒子</div>
????<div?id="02">第二個(gè)盒子</div>
????<div?id="03">第三個(gè)盒子</div>
</body>
</html>
html,body?{
????margin:?0;
}
div?{
????border:2px?solid?red;
????width:?200px;
????height:?100px;
????margin:?4px;
}
/*div?{
????float:?left;
}*/
#01?{
????float:?left;
}
#02?{
????float:?left;
}
#03?{
????float:?left;
}
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