CSS分栏问题

pch002 2011-12-12 07:52:24

css如下：
.main {width: 966px; margin: 40px auto;}
.main_picture {}
.now {}
.home_passage {position: relative; background-color: #FFFFFF;}
.3_1 {width: 321px; border-right: 1px solid #3c3c3c; background-color:#FFFFFF; float: left;}
.3_2 {width: 321px; border-right: 1px solid #3c3c3c; background-color:#FFFFFF; float: left;}
.3_3 {width: 322px; background-color:#FFFFFF; float: left;}
.space {clear: both;}
.footer {position: relative;}

html如下
<body>
<div class="main">
<div>jksdjflsdjflkdsjl</div>
</div>
<div class="main_picture">
lksdjflkjsldfjlasdjfljsadf
</div>
<div class="now">
lksadjfljs
</div>
<div>
klsdjflasjdf
</div>
<div class="home_passage">
<div class="3_1">
jkldsjflsdjflsd
</div>
<div class="3_2">
sdfsdlfkjsdkjf
</div>
<div class="3_3">jsldfjldsjflsdf
</div>
</div>
<div class="space">
</div>
<div class="footer">
jlsdfjlsdjflsd
</div>
</body>
显示时总是不分栏，怎么回事？

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pch002 2011-12-12

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哦，原来如此，
高手！谢谢

p2227 2011-12-12

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起名字最好起一些稳妥一点的

<style>

.main {width: 966px; margin: 40px auto;}

.main_picture {}

.now {}

.home_passage {position: relative; background-color: #FFFFFF;}

.h3_1 {width: 321px; border-right: 1px solid #3c3c3c; background-color:#FFFFFF; float: left;}

.h3_2 {width: 321px; border-right: 1px solid #3c3c3c; background-color:#FFFFFF; float: left;}

.h3_3 {width: 322px; background-color:#FFFFFF; float: left;}

.space {clear: both;}

.footer {position: relative;}

</style>



<body>

<div class="main">

  <div>jksdjflsdjflkdsjl</div>

  </div>

  <div class="main_picture">

  lksdjflkjsldfjlasdjfljsadf

  </div>

  <div class="now">

  lksadjfljs

  </div>

  <div>

  klsdjflasjdf

  </div>

  <div class="home_passage">

  <div class="h3_1">

  jkldsjflsdjflsd

  </div>

  <div class="h3_2">

  sdfsdlfkjsdkjf

  </div>

  <div class="h3_3">jsldfjldsjflsdf

  </div>

  </div>

  <div class="space">

  </div>

  <div class="footer">

  jlsdfjlsdjflsd

  </div>

</body>