.tplb {margin-top:20px;}
.tplb li { float:left; width:260px; height:180px; margin:20px;}
.tplb li a { display:block;}
.tplb li .bt {display:block; height:36px; line-height:36px; font-size:14px; text-align:center; background-color:#000; opacity:0.8;filter:alpha(opacity=80); margin-top:-36px; color:#FFF;}