.cont{  width:640px; overflow:hidden; height:400px; border:0px solid #edecec; z-index:1000; position:relative}.invis{ position:absolute; left:0}.slider-item,.slider-item2,.slider-item3{ float:left; display:block; width:640px; height:400px; text-align:center; padding-top:10px; background:#eee; overflow:hidden; font-size:14px; color:green; border:0px solid #000}.nav a,.nav a:active,.nav a:visited{ display:block; float:left; padding:5px; background:#666; color:#3CF; font-family:Verdana,Arial,Helvetica,sans-serif; font-size:12px; margin-right:5px; text-decoration:none}.nav li{ cursor:pointer} .desc{    margin:12px 0}.clear{    clear:both}    #leftSlider{border:0px solid #000;margin-top:-8px;margin-right:10px;float:left;margin-left:0px;width:150px}ul#navSlider{margin:0;clear:both;margin-left:0px;padding:0px}    ul#navSlider li{padding:0;margin:0;list-style-type:none;background:none;padding-left:0px;margin-bottom:13px;position:relative}ul#navSlider li a,ul#navSlider li a:active,ul#navSlider li a:visited{display:block;width:150px;height:35px;line-height:35px;font-size:11px;color:red;cursor:pointer;text-align:center;text-decoration:none;background:url(../images/port_button.png) no-repeat top left}ul#navSlider li a:hover{color:#f2ae39}