.banner{ width:100%; height: 407px; margin: 0 auto; background:url('../img/banner.png') no-repeat; background-size: 100% 100%; }
.middle-box-banner{ height: 407px; width:100%; }
.setbggry{ background:rgba(102,102,102,0.3);  color:#fff; height: auto;}
.setheightforbanner{ height: 380px; }
.readmore{ float: left; }