/*  -----------------------------------------------

Author:   Lihua Zhu (lz251@cam.ac.uk)

Version:  2 Dec. 2008

----------------------------------------------- */

/*basics*/

body{background-color:#faffff;color:#333;font:78%/150% Georgia,Arial,Verdana,sans-serif;margin:0;padding:0}

p{font-size:1.1em;margin:1.1em 0}

p.captions{font-size:0.9em;margin:1.1em 0}

h1{color:#7c623e;font-size:1.7em;margin:.5em 0}

h2{color:#7c623e;font-size:1.5em;margin:0}

h3{color:#7c623e;font-size:1.4em;margin:1em 0}

a{font-weight:700;text-decoration:underline}

a:link{color:#2e6a7b}

a:visited{color:#FF723D}

a:hover{color:#1E597F;text-decoration:none}

a:active{color:#D63900}

img{border:0}

/*---layout*/

#container{margin:0 auto}

#banner{background:#006a71; height:101px;margin:0;padding:0}

#banner h2 {color:#85c7ae; font-size:22px; padding:1em 0 1em 1em}

#main{margin:20px 10px 10px!important;margin:10px;width:98%}
#sidebar{float:left; width:20%; padding-bottom:20px}
#contents{float:right;width:76%; padding-right:20px}


#footer{background-color:#71a08e;clear:both;height:50px;margin-top:10px;padding:0}

#footer p{color:#fff;padding:16px 30px 10px;text-align:right}

<!--horizontal navigation-->

ul{margin:0;padding:0}

#nav,ul{margin:6px 24px;padding:0;}/*for ie6*/

#nav li{display:inline;list-style-type:none;}

#nav a:link,#nav a:visited{color:#fff;float:left;font-size:12px;font-weight:400;padding:0 16px 16px 0;text-decoration:none; }

#nav a:link.active,#nav a:visited.active,#nav a:hover{color:#71a08e}
<!--left menu navigation-->
#button li{list-style:none;margin:0}
#button ul{border:0;list-style-type:none;margin:0;padding:0 0 0 10px;width:98%!important;width:84%}
#button li a{background:url(imgs/markbc.gif) #faffff no-repeat 0 10px;color:#2e6a7b;display:block;padding:5px 5px 5px 20px;text-decoration:none;width:100%}
html>body #button li a{background:url(imgs/markbc.gif) #faffff no-repeat 0 10px;width:auto}
#button li a.current {
	background:url(imgs/marker.gif) #faffff no-repeat 0px 10px;
	color:#D92B00
}
#button li a:hover{background:url(imgs/marker.gif) #faffff no-repeat 0 10px;color:#D92B00}