.chromestyle{    margin-left: 38%;width:100%;font-weight:700}.dropmenudiv_top{height:24px;width:133px;background:url(../imagenes/ranking/bg_dropdown_top.gif) no-repeat}.dropmenudiv_bottom{height:11px;width:133px;background:url(../imagenes/ranking/bg_dropdown_bottom.gif) no-repeat}.chromestyle:after{content:".";display:block;height:0;clear:both;visibility:hidden}.chromestyle ul{width:100%;padding:0;margin:0;text-align:center}.chromestyle ul li{display:inline;text-align:center}.chromestyle ul li a{font-family:trebuchet ms;color:#494949;height:24px;width:133px;display:block;margin:0;text-decoration:none;background-image:url(../imagenes/ranking/elegi_la_clase.gif);background-position:bottom;text-align:center}.chromestyle ul li a:hover{background-position:top}.dropmenudiv{position:absolute;top:0;font:12px Verdana;line-height:18px;z-index:100;visibility:hidden;background:url(../imagenes/ranking/bg_dropdown.gif) top left repeat-y}.dropmenudiv a{font-family:trebuchet ms;font-size:14px;color:#999;width:auto;display:block;padding:2px 0;text-decoration:none;font-weight:700;text-align:center}* html .dropmenudiv a{width:100%}.dropmenudiv a:hover{color:#fff}