.banners li .imged{padding-bottom:56%;}
.banners .slick-arrow{width:30px;height:30px;    z-index: 10;}
.banners .slick-prev{left:5%;}
.banners .slick-next{right:5%;}
.banners .slick-prev:before{content: "\e079";font-family: 'Glyphicons Halflings';}
.banners .slick-next:before{content: "\e080";font-family: 'Glyphicons Halflings';}