#left      {float:left; width:330px; height:350px; background: url(../images/intro.jpg) 0 center no-repeat; }
#center  {float:left; width:620px; }
#welcome{margin:60px 20px; padding:5px; }

#category {list-style:none; margin:0; padding:0; }
#category  li{float:left;}
#category  li a{
	float:left;
	width:200px;
	padding:130px 0 5px 0;
	margin:10px 3px;
	text-align:center;
	text-decoration:none;
	font-weight:bold;
	font-size:0.85em;
	color:green;
	text-transform: uppercase;
}
#category  li a:hover{ color:red; text-decoration:underline; }

#category  a.lighting{ background:url(../images/cat/lighting.jpg) 0 0 no-repeat; }
#category  a.office{ background:url(../images/cat/office.jpg) 0 0 no-repeat; }
#category  a.business{ background:url(../images/cat/business.jpg) 0 0 no-repeat; }
#category  a.outdoor{ background:url(../images/cat/outdoor.jpg) 0 0 no-repeat; }
#category  a.led{ background:url(../images/cat/led.jpg) 0 0 no-repeat; }