請問news course sidebar 三個盒子高度為什么不一致，course盒子低了一點
.main
{
height: 250px;
background-color: #FFF;
margin-top: 5px;
}
.news
{
width: 340px;
border: 1px solid #E8E8E8;
background-color: #9FC;
}
.course
{
width: 410px;
border: 1px solid #E8E8E8;
background-color: #FF6;
margin: 7px;
}
.sidebar
{
width: 230px;
background-color: #09F;
}
.news,.course,.sidebar
{
height: 250px;
float: left;
}? ? ??
<!doctype html>
<html>
<head>
<meta charset="UTF-8">
<title>Document</title>
<link rel="stylesheet" type="text/css" href="style.css"? />
<script src="js/setHomeSetFav.js" type="text/javascript" charset="gb2312"></script>
<script src="js/myfocus-2.0.1.min.js" type="text/javascript"></script>
<script src="js/mf-pattern/mF_YSlider.js" type="text/javascript"></script>
<link href="js/mf-pattern/mF_YSlider.css" rel="stylesheet" type="text/css" />
<script type="text/javascript">
myFocus.set({
id:'picBox'
})
</script>
</head>
<body>
<div class="top">
<div class="top_content">
<ul>
<li><a href="#">聯(lián)系我們</a></li>
<li><a href="#" onclick="AddFavorite(window.location,Document.title)">加入收藏</a></li>
<li><a href="#" onclick="SetHome(window.location)">設為首頁</a></li>
</ul>
</div>
</div><!--top結束-->
<div class="wrap">
<div class="logo">
<div class="logo_left">
<img src="images/logo.jpg" alt="慕課網" />
</div>
<div class="logo_right">
<img src="images/tel.jpg" alt="服務熱線" />24小時服務熱線:<span class="tel">123-456-7890</span>
</div>
</div><!--logo結束-->
<div class="clear"></div>
<div class="nav">
<div class="nav_left"></div>
<div class="nav_mid">
<div class="nav_mid_left">
<ul>
<li><a href="#">首頁</a></li>
<li><a href="list.html">關于慕課</a></li>
<li><a href="list.html">新聞動態(tài)</a></li>
<li><a href="list.html">課程中心</a></li>
<li><a href="list.html">在線課程</a></li>
<li><a href="list.html">人才招聘</a></li>
</ul>
</div>
<div class="nav_mid_right">
<form action="" method="post">
<input type="text" class="search_text" />
</form>
</div>
</div><!--nav_mid結束-->
<div class="nav_right"></div>
</div><!--nav結束-->
<div class="ad" id="picBox">
<div class="loading"><img src="images/loading.gif" alt="圖片加載中" /></div>
<div class="pic">? ?<!-- 圖片列表外面，必須包裹一個class為pic的div-->
<ul>
<li><img src="images/ad2.jpg" /></li>
<li><img src="images/ad3.jpg" /></li>
<li><img src="images/ad4.jpg" /></li>
</ul>
</div>
</div><!--ad結束-->
<div class="main">
<div class="news">
<div class="title"></div>
<div class=""></div>
<div class=""></div>
</div><!--news結束-->
<div class="course"></div><!--course結束-->
<div class="sidebar"></div><!--sidebar結束-->
</div><!--main結束-->
</div><!--wrap結束-->
</body>
</html>
2020-04-29
course的margin值寫錯了
應該是margin:0 7px;? 你沒寫上下的間距設為0 直接寫7px默認為上下左右均為7px！
2019-10-27
三個盒子的上下位置是不是不一樣