div+css搭建系统页面框架

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
    <head>
        <title></title>

        <style type="text/css">
            *
            {
                margin:0;
                padding:0;
            }

            #mainTop
            {
                height:90px;
                overflow:hidden;
            }

            #bottomLeft
            {
                height:100%;
                width:15%;
                float:left;
                overflow:hidden;
                position:relative;
            }

            #bottomRight
            {
                height:100%;
                width:85%;
                float:left;
                overflow:hidden;
            }

            #split
            {
                width:10px;
                height:100%;
                background:black;
                position:absolute;
                right:0;
                top:0;
            }

            #leftContent
            {
                height:100%;
                overflow:auto;
                margin-right:10px;  /* 宽度和split的宽度一致 */
            }

            #rightContent
            {
                height:100%:
                overflow:auto;
            }
        </style>
    </head>
    <body>
        <div>
            <div ;
        };
    </script>
</html>