.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,.icon-arrow-a-right{ height: 58px; width: 30px;}
.icon-arrow-a-left { background: url(images/lbtn.png) no-repeat; }
.icon-arrow-a-right { background: url(images/rbtn.png) no-repeat; }


#main {overflow: hidden; zoom: 1; position: relative; }
#index_b_hero { width: 950px; height: 423px; margin:0 auto; position: relative; }
    #index_b_hero img { width: 950px; height: 423px; }
    #index_b_hero .heros { width: 950px; height: 423px; }
    #index_b_hero .hero-wrap { overflow: visible; position: absolute; }
    #index_b_hero .next, #index_b_hero .prev {  position: absolute; top: 50%; margin-top: -25px; margin-left: 5px; z-index: 10; }
	#index_b_hero .prev {left:-50px;}
    #index_b_hero .next { margin: -25px 5px 0 0; right: -50px; }
    #index_b_hero .mask-left, #index_b_hero .mask-right, #index_b_hero .hero { background: #fff; padding:0px 1px 0px 1px; z-index: 1; position: absolute; left: 0;  bottom:0;width: 950px; height: 423px; overflow: hidden; left: 1900px; }
    #index_b_hero .mask-right, #index_b_hero .mask-left { z-index: 4; left: -950px; filter: alpha(Opacity=50); opacity: .5; background: #fff; overflow: hidden; }
    #index_b_hero .mask-right { left: 950px; }
    #index_b_hero .active { z-index: 2; left: 0; }