由于缺少結(jié)構(gòu)，即使是形式良好的 HTML 頁(yè)面也比較難以處理固额。必須分析標(biāo)題的級(jí)別眠蚂，才能看出各個(gè)部分的劃分方式。邊欄斗躏、頁(yè)腳逝慧、頁(yè)眉、導(dǎo)航條啄糙、主內(nèi)容區(qū)和各篇文章都由通用的 div 元素來(lái)表示笛臣。HTML 5 添加了一些新元素，專門(mén)用來(lái)標(biāo)識(shí)這些常見(jiàn)的結(jié)構(gòu)：
· section：這可以是書(shū)中的一章或一節(jié)隧饼，實(shí)際上可以是在 HTML 4 中有自己的標(biāo)題的任何東西
· header：頁(yè)面上顯示的頁(yè)眉沈堡；與 head 元素不一樣
· footer：頁(yè)腳；可以顯示電子郵件中的簽名
· nav：指向其他頁(yè)面的一組鏈接
· article：blog桑李、雜志踱蛀、文章匯編等中的一篇文章
我們來(lái)考慮一個(gè)典型的 shouchaobao手抄報(bào)主頁(yè)窿给，它的頂部有頁(yè)眉，底部有頁(yè)腳率拒，還有幾篇文章崩泡、一個(gè)導(dǎo)航區(qū)和一個(gè)邊欄，見(jiàn)代碼1 典型的 blog 頁(yè)面
<html>
<head>
<title>Mokka mit Schlag </title>
</head>
<body>
<div id="page">
<div id="header">
<h1><a >9252手抄報(bào)</a></h1>
</div>
<div id="container">
<div id="center" class="column">
<div class="post" id="post-1000572">
<h2><a href=
"/shouchaobao/birding/2007/04/23/spring-comes-and-goes-in-sussex-county/">
Spring Comes (and Goes) in Sussex County</a></h2>
<div class="entry">
<p>Yesterday I joined the Brooklyn Bird Club for our
annual trip to Western New Jersey, specifically Hyper
Humus, a relatively recently discovered hot spot. It
started out as a nice winter morning when we arrived
at the site at 7:30 A.M., progressed to Spring around
10:00 A.M., and reached early summer by 10:15. </p>
</div>
</div>
<div class="post" id="post-1000571">
<h2><a href=
"/blog/birding/2007/04/23/but-does-it-count-for-your-life-list/">
But does it count for your life list?</a></h2>
<div class="entry">
<p>Seems you can now go 2020 五一勞動(dòng)節(jié)手抄報(bào)<a
>bird watching via the Internet</a>. I
haven't been able to test it out yet (20 user
limit apparently) but this is certainly cool.
Personally, I can't imagine it replacing
actually being out in the field by any small amount.
On the other hand, I've always found it quite
sad to meet senior birders who are no longer able to
hold binoculars steady or get to the park. I can
imagine this might be of some interest to them. At
least one elderly birder did a big year on TV, after
he could no longer get out so much. This certainly
tops that.</p>
</div>
</div>
</div>
<div class="navigation">
<div class="alignleft">
<a href="/blog/page/2/">? _fcksavedurl=""/blog/page/2/">?" Previous Entries</a>
</div>
<div class="alignright"></div>
</div>
</div>
<div id="right" class="column">
<ul id="sidebar">
<li><h2>Info</h2>
<ul>
<li><a href="/blog/comment-policy/">Comment Policy</a></li>
<li><a href="/blog/todo-list/">Todo List</a></li>
</ul></li>
<li><h2>Archives</h2>
<ul>
<li><a href='/blog/2007/04/'>April 2007</a></li>
<li><a href='/blog/2007/03/'>March 2007</a></li>
<li><a href='/blog/2007/02/'>February 2007</a></li>
<li><a href='/blog/2007/01/'>January 2007</a></li>
</ul>
</li>
</ul>
</div>
<div id="footer">
<p>Copyright 2007 Elliotte Rusty Harold</p>
</div>
</div>
</body>
</html>
即使有正確的縮進(jìn)猬膨，這些嵌套的 div 仍然讓人覺(jué)得非辰亲玻混亂。在 HTML 5 中勃痴，可以將這些元素替換為語(yǔ)義性的元素谒所，見(jiàn)代碼2 用 HTML5編寫(xiě)的典型blog頁(yè)面
<html>
<head>
<title>Mokka mit Schlag </title>
</head>
<body>
<header>
<h1><a >9252手抄報(bào)</a></h1>
</header>
<section>
<article>
<h2><a href=
"/blog/birding/2007/04/23/spring-comes-and-goes-in-sussex-county/">
Spring Comes (and Goes) in Sussex County</a></h2>
<p>Yesterday I joined the Brooklyn Bird Club for our
annual trip to Western New Jersey, specifically Hyper
Humus, a relatively recently discovered hot spot. It
started out as a nice winter morning when we arrived at
the site at 7:30 A.M., progressed to Spring around 10:00
A.M., and reached early summer by 10:15. </p>
</article>
<article>
<h2><a href=
"/blog/birding/2007/04/23/but-does-it-count-for-your-life-list/">
But does it count for your life list?</a></h2>
<p>Seems you can now go 2020 61兒童節(jié)手抄報(bào)<a
>bird watching via the Internet</a>. I
haven't been able to test it out yet (20 user
limit apparently) but this is certainly cool.
Personally, I can't imagine it replacing
actually being out in the field by any small amount.
On the other hand, I've always found it quite
sad to meet senior birders who are no longer able to
hold binoculars steady or get to the park. I can
imagine this might be of some interest to them. At
least one elderly birder did a big year on TV, after
he could no longer get out so much. This certainly
tops that.</p>
</article>
<nav>
<a href="/blog/page/2/">? _fcksavedurl=""/blog/page/2/">?" Previous Entries</a>
</nav>
</section>
<nav>
<ul>
<li><h2>Info</h2>
<ul>
<li><a href="/blog/comment-policy/">Comment Policy</a></li>
<li><a href="/blog/todo-list/">Todo List</a></li>
</ul></li>
<li><h2>Archives</h2>
<ul>
<li><a href='/blog/2007/04/'>April 2007</a></li>
<li><a href='/blog/2007/03/'>March 2007</a></li>
<li><a href='/blog/2007/02/'>February 2007</a></li>
<li><a href='/blog/2007/01/'>January 2007</a></li>
</ul>
</li>
</ul>
</nav>
<footer>
<p>Copyright 2007 Elliotte Rusty Harold</p>
</footer>
</body>
</html>
現(xiàn)在不再需要 div 了。不再需要自己設(shè)置 class 屬性沛申，從標(biāo)準(zhǔn)的元素名就可以推斷出各個(gè)部分的意義劣领。這對(duì)于音頻瀏覽器、手機(jī)瀏覽器和其他非標(biāo)準(zhǔn)瀏覽器尤其重要铁材。
〖馓浴（待續(xù)）
