.header{
  height:60px;
  background:#fff;
  position:fixed;
  z-index:9999
}
.con{width:100%; height:100%; background:url(https://ss0.baidu.com/-Po3dSag_xI4khGko9WTAnF6hhy/super/whfpf%3D425%2C260%2C50/sign=9701670d5db5c9ea62a650a3b3048232/b151f8198618367a792e2edb28738bd4b31ce515.jpg) no-repeat bottom #ec9d05; position:fixed; z-index:69; top:0;}
.First_botIMG{width:1049px; min-height:100%; background:url(../images/first_bottomIMg.png) no-repeat center;}