Problem with CSS 100%

programming web dev
1

Ok so I got a main container div which is 100% in height.
This works fine.
I then have a left container for a menu, and a right container for content.
I have put the height for these as 100% but it doesn’t work.
In side the right container I have three divs, header, content and footer.

Can someone take a look and see why the left and right containers aren’t sizing to 100%.

Here is my css code:


/* CSS Document */

HTML, BODY
    {
        margin: 0px;
        padding: 0px;
        height: 100%;
        width: 100%;
        background: #A38771;
    }

    #mainBody
    {
        width: 755px;
        margin: 0px;
        padding: 0px;
        margin-left: auto;
        margin-right: auto;
        position: relative;
        height: 100%;
    }
    
    * HTML DIV#mainBody
    {
        height: 100%;
    }
    
    #left
    {
    height: 100%;
    width: 80px;
    float: left;
    }
    
    #subBody
    {
    height: 100%;
    width: 675px;
    float:right;
    }
    
    #header
    {
    height: 278px;
    background: url(../images/template_images/index_01.jpg);
    }
    
    #content
    {
    background: url(../images/template_images/index_02.jpg);
    background-repeat: repeat-y;
    }
    
    #footer
    {
    height: 24px;
    bottom: 0px;
    background: url(../images/template_images/index_03.jpg);
    }

And Here is my HTML code:


<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>The Winston Churchill</title>
<link href="css/main.css" rel="stylesheet" type="text/css" />
</head>

<body>
<div id="mainBody">

<div id="left"><img src="images/template_images/index_04.jpg" alt="Logo_Left" width="80" height="226" /></div>

<div id="subBody">

<div id="header"></div>

<div id="content"></div>

<div id="footer"></div>

</div>
</div>
</body>
</html>

Many thanks in advance.