.clearfix:before, .clearfix:after { content: '.'; display: block; overflow: hidden; visibility: hidden; font-size: 0; line-height: 0; width: 0; height: 0; }
.clearfix:after { clear: both; }
.clearfix { zoom: 1; }

.icon-arrow-a-left { background-position: 0 0; height: 39px; width: 51px; left:30px; background:url(../images/left.jpg) no-repeat;  cursor:pointer;}
.icon-arrow-a-right { background:url(../images/right.jpg) no-repeat; height: 39px; width: 51px; left:90px; cursor:pointer; }
#main {overflow: hidden; zoom: 1; position: relative; }
#index_b_hero { width: 1010px; height: 443px; margin: auto; position: relative; }
    #index_b_hero img { width: 1000px; height: 433px; }
    #index_b_hero .heros { width: 1000px; height: 433px; }
    #index_b_hero .hero-wrap { overflow: visible; position: absolute; }
    #index_b_hero .next, #index_b_hero .prev { filter: alpha(Opacity=70); opacity: .7; position: absolute; top: 90%; margin-top: -25px; margin-left: 5px; background-color: #303030; z-index: 3; }
        #index_b_hero .next:hover, #index_b_hero .prev:hover { background-color: orangered; }
    #index_b_hero .next { margin: -25px 5px 0 0; right: 0; }
    #index_b_hero .disabled { background-color: #eee; }
    #index_b_hero .mask-left, #index_b_hero .mask-right, #index_b_hero .hero { background: #fff; padding: 5px; z-index: 1; position: absolute; top: 0; left: 0; width:1000px; height: 433px; overflow: hidden; left: 2000px; }
    #index_b_hero .mask-right, #index_b_hero .mask-left { z-index: 4; left: -1000px; filter: alpha(Opacity=50); opacity: .5; background: #fff; overflow: hidden; }
    #index_b_hero .mask-right { left: 1000px; }
    #index_b_hero .active { z-index: 2; left: 0; }