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Div + CSS classic ?? Three-column layout (left and right fixed center adaptive)

Source: Internet
Author: User
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From http://www.zendstudio.net/post/52/

 

Some people have been asking: "I want to use Div + CSS to implement three-column layout, and I need to fix the left and right width and adapt to the middle. What should I do ?"
I usually reply like this: "in the middle, set margin-left to set the leftdiv width, set margin-right to set the rightdiv width, then the leftdiv float left, And the rightdiv right to float !", But some people say no. I had to prove the correctness of my truth with practice.
OK! Below is my complete testCode.

  2. <! Doctype HTML public "-// W3C // dtd xhtml 1.0 transitional // en" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
  4. <Html Xmlns=Http://www.w3.org/1999/xhtml">
  6. <Head>
  8. <Meta HTTP-equiv="Content-Type" Content="Text/html; charset = gb2312" />
  10. <Title>Untitled document</Title>
  12. <Style Type="Text/CSS">
  14. <! --
  16. *{
  18. Margin: 0;
  20. Padding: 0;
  22. }
  24. . Box {
  26. Width: 100%;
  28. Font-size: 12px;
  30. }
  32. . Leftdiv {
  34. Float: left;
  36. Width: 200px;
  38. Height: 600px;
  40. Background: # f00;
  42. }
  44. . Middlediv {
  46. Background: #0f0;
  48. Height: 600px;
  50. Margin: 0 200px;
  52. }
  54. . Rightdiv {
  56. Float: right;
  58. Width: 200px;
  60. Height: 600px;
  62. Background: # 00f;
  64. }
  66. . Clearfix {
  68. Clear: both;
  70. Font-size: 0;
  72. Height: 0;
  74. }
  76. -->
  78. </Style>
  80. </Head>
  84. <Body>
  86. <Div Class="Box">
  88. <Div Class="Leftdiv">The content of Class "leftdiv" is displayed here.</Div>
  90. <Div Class="Rightdiv">The content of Class "rightdiv" is displayed here.</Div>
  92. <Div Class="Middlediv">The content of Class "box" is displayed here.</Div>
  94. <Div Class="Clearfix">The content of Class "Clearfix" is displayed here.</Div>
  96. </Div>
  98. </Body>
  100. </Html>

Pay attention to the sequence of the three Divs! The IE 3px bug was not fixed, but the performance was hardly affected. The above code passes the test in IE 6 and ff.
From this conclusion, the layout of the two columns is to remove the right div, and then remove the margin-right in the middle.

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