class“ ”里面不是类别的名字吗......那“”里面的文章功用何在？
小弟懂了 ??!!
<style>body{ width:90%; margin:0 auto} #content{ overflow:auto; height:100%;} #nav,#feature,#footer{ background-color:#efefef; margin:1%;} .col1,.col2,.col3{ background-color:#efefef; width:31.3%px; float:left; margin:1%;} li{ display:inline; padding:0.5em;} #nav,#footer{ background-color:#efefef; padding:0.5em 0;} #feature,.article{ height:10em; margin-bottom:1em; background-color:#efefef;}</style> <body><div id="header"><h1 id="Logo">Logo</h1><div id="nav"><ul><li>A</li><li>B</li><li>C</li><li>D</li><li>E</li></ul></div></div><div id="content"><div id="feature"><p>Feature</p></div><div class="article col1"><p>col one</p></div><div class="article col2"><p>col two</p></div><div class="article col3"><p>col three</p></div></div><div id="footer"><p>Copynight 2011</p></div></body>
为什么小弟做出的版面这样...
而不是这样子呢？宽度应该没设定错呀...
回复讨论(解决方案)
.col1,.col2,.col3{ background-color:#efefef; width:31.3%px; float:left; margin:1%;} 这里的宽度单位？想用百分比还是想用像素？
文字居中显示的话，可以再body中添加一个text-align:center;
也可以在每一个div元素中添加，这个属性会被所有的后代元素继承的。
?於 div class "article col1"和div class "col1" 差?在哪?... 因?小弟是??自?有些不懂得地方
?什?要?上要用div class "article col1" 意?差在哪?
<div class="article col1"><p>col one</p></div><div class="article col2"><p>col two</p></div><div class="article col3"><p>col three</p></div>
?於 div class "article col1"和div class "col1" 差?在哪?... 因?小弟是??自?有些不懂得地方
?什?要?上要用div class "article col1" 意?差在哪?
<div class="article col1"><p>col one</p></div><div class="article col2"><p>col two</p></div><div class="article col3"><p>col three</p></div>
有没有高手能回答
网上查都查不到类似的
都只看见的
class“ ”里面不是类别的名字吗......那“”里面的文章功用何在？
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