.fly-child{position:absolute;z-index:2000}
.fly-child img{width:100%}
.fly-child .btn-close {
    background: url(close.png) no-repeat center center;
    background-size: contain;
}
.fly-child .btn-close a {
    display: block;
    width: 32px;
    height: 32px;
    margin: 24px auto;
    cursor: pointer;
}