.fl-left{ float:left;}
.fl-right{ float:right;}

#mainca{100%; margin:auto;background:url(../images/casebg.jpg) no-repeat center top; background-color:#fff;}



#mainca .strength{ width:1200px; margin:0px auto;padding-bottom:20px; background:url(../images/casebg.jpg) no-repeat center; }
#mainca .strength .video{ width:600px; background:#ddd; overflow:hidden;}
#mainca .strength .video a{display:block;}
#mainca .strength .video a>img{ transition:all .35s;}
#mainca .strength .video .name{ text-align:left; color:#fff; font-size:22px; padding:0 20px; height:60px; line-height:60px; background:rgba(0,0,0,0.6);}
#mainca .strength .video:hover img{ opacity:.6;}
#mainca .strength .workshop{width:584px;}
#mainca .strength .workshop a{ display:block; float:left; width:283px; margin:0px 18px 18px 0px;}
#mainca .strength .workshop a:nth-child(2n){ margin-right:0 !important;}
#mainca .strength .workshop .name{ padding:0 10px; height:28px; line-height:28px; text-align:center; background:rgba(0,0,0,0.6); color:#fff; font-size:14px; transition:all .35s;}
#mainca .strength .workshop a:hover .name{ background:#f05e26;}