為什么我這個清除浮動沒有效果？
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>無標題文檔</title>
<style type="text/css">
* {
??? margin:0;
?? ?padding:0;
}
#wrap {
?? ?background:#00C;
?? ?margin:0 auto;
?? ?width:960px;
}
#header {
?? ?background:#FF3300;
?? ?width:100%;
}
#mainbody{
?? ???? background:#FC0;
?? ???? width:100%;
??????? overflow：hidden；}
.left {
?? ?width:800px;
?? ?height:200px;
?? ?background:#000;
??? float:left;
?? ?
}
.right {
width:140px;
height:500px;
background:#690;
float:left;
}
#footer {
?? ?background:#639;
?? ?width:100%;
}
</style>
</head>
<body>
<div id="wrap">
? <div id="header">頭部</div>
? <div id="mainbody">
??? <div class="left"></div>
??? <div class="right"></div>
? </div>
? <div id="footer">版權部分</div>
</div>
</body>
</html>
2016-11-04
#mainbody{
?? ???? background:#FC0;
?? ???? width:100%;
??????? overflow：hidden；}
代碼中的?overflow：hidden； ? 符號錯了（冒號、分號）
2016-08-21
#mainbody {
? ?background:#FC0;
height:500px;
width:960px overflow:hidden;
}
.left {
width:800px;
height:200px;
background:#000;
float:left;
}
.right {
width:140px;
height:500px;
background:#690;
float:right;
}
2016-08-21
.right {
width:140px;
height:500px;
background:#690;
float:left;
}
任務3：請補充代碼使.right橫向排列，并緊挨著#mainbody右邊緣顯示
所以float:right;