<!DOCTYPE?HTML>
<html>
<head>
<meta?http-equiv="Content-Type"?content="text/html;?charset=utf-8">
<title>浮動(dòng)模型</title>
<style?type="text/css">
div{
border:2px?red?solid;
????width:200px;
????height:400px;
}
#div1{float:left;}
</style>
</head>
<body>
<div?id="div1">欄目1</div>
<div?id="div2">欄目2</div>
</body>
</html>
html+css基礎(chǔ)課程12-4浮動(dòng)模型里面index.html的代碼如果用類選擇器選擇div1，那么欄目二邊框就消失了？
moon_gloaming
2016-07-25 17:29:48
