How to make a stable two column layout in HTML/CSS

Solution 1:

Here you go:

<html>
<head>
  <title>Cols</title>
  <style>
    #left {
      width: 200px;
      float: left;
    }
    #right {
      margin-left: 200px;
      /* Change this to whatever the width of your left column is*/
    }
    .clear {
      clear: both;
    }
  </style>
</head>

<body>
  <div id="container">
    <div id="left">
      Hello
    </div>
    <div id="right">
      <div style="background-color: red; height: 10px;">Hello</div>
    </div>
    <div class="clear"></div>
  </div>
</body>

</html>

See it in action here: http://jsfiddle.net/FVLMX/

Solution 2:

I could care less about IE6, as long as it works in IE8, Firefox 4, and Safari 5

This makes me happy.

Try this: Live Demo

display: table is surprisingly good. Once you don't care about IE7, you're free to use it. It doesn't really have any of the usual downsides of <table>.

CSS:

#container {
    background: #ccc;
    display: table
}
#left, #right {
    display: table-cell
}
#left {
    width: 150px;
    background: #f0f;
    border: 5px dotted blue;
}
#right {
    background: #aaa;
    border: 3px solid #000
}