這個(gè)代碼有毒
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?? ?<head>
?? ??? ?<meta charset="UTF-8">
?? ??? ?<title>企業(yè)網(wǎng)站實(shí)踐</title>
?? ??? ?<link href="css/index.css" rel="stylesheet" type="text/css" />
?? ??? ?<script type="text/javascript" charset="gb2312" src="js/setHomeSetFav.js"></script>
?? ??? ?<script type="text/javascript" src="js/myfocus-2.0.1.min.js"></script>
?? ??? ?<!--<script type="text/javascript">
?? ??? ??? ?myFocus.set({
?? ??? ??? ??? ?id:'picBox'
?? ??? ??? ?})
?? ??? ?</script>-->
?? ?</head>
?? ?<body>
?? ??? ?<div class="top">
?? ??? ??? ?<div class="top_content">
?? ??? ??? ??? ?<ul>
?? ??? ??? ??? ??? ?<a href="#"><li>聯(lián)系我們</a></li>
?? ??? ??? ??? ??? ?<a href="#"><li>加入收藏</a></li>
?? ??? ??? ??? ??? ?<a href="#"><li>設(shè)為首頁(yè)</a></li>
?? ??? ??? ??? ?</ul>
?? ??? ??? ?</div>
?? ??? ?</div>
?? ??? ?<div class="wrap">
?? ??? ??? ?<!--Star-logo-->
?? ??? ??? ?<div class="logo">
?? ??? ??? ??? ?<div class="logo_left">
?? ??? ??? ??? ??? ?<img src="images/logo.jpg" alt="慕課網(wǎng)" />
?? ??? ??? ??? ?</div>
?? ??? ??? ??? ?<div class="logo_right">
?? ??? ??? ??? ??? ?<img src="images/tel.jpg" alt="服務(wù)熱線" />24小時(shí)服務(wù)熱線
?? ??? ??? ??? ??? ?<span class="tel">028-123456789</span>
?? ??? ??? ??? ?</div>
?? ??? ??? ?</div>
?? ??? ??? ?<!--Stop-logo-->
?? ??? ??? ?<!--Start-nav-->
?? ??? ??? ?<div class="nav">
?? ??? ??? ??? ?<div class="nav_left"></div>
?? ??? ??? ??? ?<div class="nav_mid">
?? ??? ??? ??? ??? ?<div class="nav_mid_left">
?? ??? ??? ??? ??? ??? ?<ul>
?? ??? ??? ??? ??? ??? ??? ?<li><a href="#">首頁(yè)</a></li>
?? ??? ??? ??? ??? ??? ??? ?<li><a href="#">關(guān)于課程</a></li>
?? ??? ??? ??? ??? ??? ??? ?<li><a href="#">新聞動(dòng)態(tài)</a></li>
?? ??? ??? ??? ??? ??? ??? ?<li><a href="#">課程中心</a></li>
?? ??? ??? ??? ??? ??? ??? ?<li><a href="#">在線課程</a></li>
?? ??? ??? ??? ??? ??? ??? ?<li><a href="#">人才招聘</a></li>
?? ??? ??? ??? ??? ??? ?</ul>
?? ??? ??? ??? ??? ?</div>
?? ??? ??? ??? ??? ?<div class="nav_mid_right">
?? ??? ??? ??? ??? ??? ?<form method="post" action="#">
?? ??? ??? ??? ??? ??? ??? ?<input type="text" value="" placeholder="搜索框" class="serch" />
?? ??? ??? ??? ??? ??? ?</form>
?? ??? ??? ??? ??? ?</div>
?? ??? ??? ??? ?</div>
?? ??? ??? ??? ?<div class="nav_right"></div>
?? ??? ??? ?</div>
?? ??? ??? ?<!--Stop-nav-->
?? ??? ??? ?<div class="ad" id="picBox">
?? ??? ??? ??? ?<!--<div class="loading"><img src="images/loading.gif" alt="圖片加載中" /></div>-->
?? ??? ??? ??? ?<div class="pic">
?? ??? ??? ??? ??? ?<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>
?? ??? ??? ?<div class="main">
?? ??? ??? ??? ?<!--Start-news-->
?? ??? ??? ??? ?<div class="news">
?? ??? ??? ??? ??? ?<!--S-title-->
?? ??? ??? ??? ??? ?<div class="title">
?? ??? ??? ??? ??? ??? ?<h2 class="title_left">新聞中心</h2>
?? ??? ??? ??? ??? ??? ?<span class="title_right"><a href="#">More>></a></span>
?? ??? ??? ??? ??? ?</div>
?? ??? ??? ??? ??? ?<!--S-title-->
?? ?
?? ??? ??? ??? ??? ?<!--S-pic_news-->
?? ??? ??? ??? ??? ?<div class="pic_news">
?? ??? ??? ??? ??? ??? ?<img src="images/news.jpg" />
?? ??? ??? ??? ??? ??? ?<h2><a href="#">520慕課女神喊你來(lái)表白</a></h2>
?? ??? ??? ??? ??? ??? ?<p>活動(dòng)時(shí)間5/20-5/25<br />中獎(jiǎng)公布時(shí)間：5/26<br /><a href="#">Learn More>></a></p>
?? ??? ??? ??? ??? ?</div>
?? ??? ??? ??? ??? ?<!--S-pic_news-->
?? ??? ??? ??? ??? ?
?? ??? ??? ??? ??? ?<!--S-news_list-->
?? ??? ??? ??? ??? ?<div class="news_list">
?? ??? ??? ??? ??? ??? ?<ul>
?? ??? ??? ??? ??? ??? ??? ?<li>
?? ??? ??? ??? ??? ??? ??? ??? ?<a href="#">"有為屌絲"在路上</a>
?? ??? ??? ??? ??? ??? ??? ??? ?<span>2017-3-27</span>
?? ??? ??? ??? ??? ??? ??? ?</li>
?? ??? ??? ??? ??? ??? ??? ?<li>
?? ??? ??? ??? ??? ??? ??? ??? ?<a href="#">"有為屌絲"在路上</a>
?? ??? ??? ??? ??? ??? ??? ??? ?<span>2017-3-27</span>
?? ??? ??? ??? ??? ??? ??? ?</li>
?? ??? ??? ??? ??? ??? ??? ?<li>
?? ??? ??? ??? ??? ??? ??? ??? ?<a href="#">"有為屌絲"在路上</a>
?? ??? ??? ??? ??? ??? ??? ??? ?<span>2017-3-27</span>
?? ??? ??? ??? ??? ??? ??? ?</li>
?? ??? ??? ??? ??? ??? ?</ul>
?? ??? ??? ??? ??? ?</div>
?? ??? ??? ??? ??? ?<!--S-news_list-->
?? ??? ??? ??? ?</div>
?? ??? ??? ??? ?<!--StopNews-->
?? ??? ??? ??? ?
?? ??? ??? ??? ?<div class="course">
?? ??? ??? ??? ??? ?<div class="title">
?? ??? ??? ??? ??? ??? ?<h2 class="title_left">課程中心</h2>
?? ??? ??? ??? ??? ??? ?<span class="title_right"><a href="#">More>></a></span>
?? ??? ??? ??? ??? ?</div>
?? ??? ??? ??? ??? ?<div class="course_pic">
?? ??? ??? ??? ??? ??? ?<img src="images/css.jpg" />
?? ??? ??? ??? ??? ??? ?<h2><a href="#">圓角進(jìn)化論</a></h2>
?? ??? ??? ??? ??? ??? ?<p>CSS圓角的實(shí)現(xiàn)，經(jīng)歷了三大發(fā)展階段：背景圖片、CSS2.0+HTM、CSS3.0圓角屬性。本案例詳細(xì)交接
?? ??? ??? ??? ??? ??? ?每一種實(shí)現(xiàn)方式，并對(duì)實(shí)現(xiàn)的優(yōu)缺點(diǎn)進(jìn)行比較</p>
?? ??? ??? ??? ??? ?</div>
?? ??? ??? ??? ??? ?<div class="course_type">
?? ??? ??? ??? ??? ??? ?<ul>
?? ??? ??? ??? ??? ??? ??? ?<li>PHP開發(fā)</li>
?? ??? ??? ??? ??? ??? ??? ?<li>Java開發(fā)</li>
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?? ??? ??? ??? ??? ??? ??? ?<li>Android開發(fā)</li>?? ??? ??? ??? ?
?? ??? ??? ??? ??? ??? ?</ul>
?? ??? ??? ??? ??? ?</div>
?? ??? ??? ??? ?</div>
?? ??? ??? ??? ?<div class="sidebar">
?? ??? ??? ??? ??? ?<div class="video">
?? ??? ??? ??? ??? ??? ?<div class="title">
?? ??? ??? ??? ??? ??? ??? ?<h2 class="title_left">媒體聚焦</h2>
?? ??? ??? ??? ??? ??? ?</div>
?? ??? ??? ??? ??? ??? ?<div class="video_cotent">
?? ??? ??? ??? ??? ??? ??? ?<embed src='http://player.youku.com/player.php/sid/XMjY1Mzc4MjU3Ng==/v.swf'
?? ??? ??? ??? ??? ??? ??? ??? ?allowFullScreen='true' quality='high' width='220px' height='140px' align='middle'
?? ??? ??? ??? ??? ??? ??? ??? ?allowScriptAccess='always' type='application/x-shockwave-flash'></embed>
?? ??? ??? ??? ??? ??? ?</div>
?? ??? ??? ??? ??? ?</div>
?? ??? ??? ??? ??? ?<div class="sidebar_ad">
?? ??? ??? ??? ??? ??? ?<img src="images/app.jpg" />
?? ??? ??? ??? ??? ?</div>
?? ??? ??? ??? ?</div>
?? ??? </div>
?? ??? <div class="copyright"></div>
?? ?</body>
</html>
一直是按照視頻寫的，為啥class="copyright"的盒子在F12下看到的是以wrap為父元素的，這是為什么？誰(shuí)知道嗎？是代碼少了一些閉合標(biāo)簽嗎？不知道原因
2017-04-05
兄弟你有沒有用編輯器寫的，有的話你直接點(diǎn)copyright后面的那個(gè)結(jié)束的</div> 然后編碼里面有自動(dòng)聚焦的被虛線包裹的<div>，你就可以看出來(lái)是不是寫差了，然后也可能是你的copyright沒有內(nèi)容，你只設(shè)置了高度或者寬度其中一種，沒有被撐開，跟wrap貼在一起。