body {font: normal 76%/1.5em "Lucida Grande", "Trebuchet MS", Verdana, Geneva, Helvetica, sans-serif; text-align:center;}
/*div{border:1px red solid;}*/

#banner {background: url("../images/logo_main.jpg") 50% 50% no-repeat; height: 191px; width: 684px; margin: 0px auto 0px;}
#footer {margin-top:20px;}
#footer a {color:#888;}

div.clear {clear:both;}

#services{position:relative;left:353px;top:61px;text-align:left; width:200px; margin:0px auto 0px 0px;}

#search-box{width:300px;}
input {font-family: "Lucida Grande", "Lucida Sans Unicode", Verdana, Geneva, sans-serif;}
input[type=submit] {font-size: 1em; border-color: #999 #333 #333 #999; border-width: 1px;}
input[type=text] {border: 1px solid #999; text-align:center;}

#topics {margin:14px auto; width:490px; }
#topics div.icon {float:left;font-size:130%;font-weight:bold;}
#topics img {border: 5px solid #C8C8C8; margin:10px 10px 3px 10px; padding:1px; width:130px; height:130px;}

#math:hover {border-color:navy;}
#physics:hover {border-color:red;}
#chemistry:hover {border-color:yellow;}
#biology:hover {border-color:green;}
#space:hover {border-color:blue;}
#astronomy:hover {border-color:purple;}

/*
#programming:hover {border-color:purple;}
#robotics:hover {border-color:orange;}
#genetics:hover {border-color:slate;}
#nano-tech:hover {border-color:russet;}
*/