.page-header{
    padding: 8px;
    position: relative;
}
.page-header .hd-img{
    width: 100%;
}
.page-header .return-go{
    position: absolute;
    z-index: 2;
    height: 26px;
    left: 20px;
    top: 50%;
    margin-top: -13px;
}
.page-header .return-go img{
    height: 100%;
}