*{padding: 0;margin: 0;}
body{
    background-color: #f3f3f5;
}
.g-main{width: 100%;height:100%;overflow: hidden;}
.g-content{
    position: absolute;
    top: 50%;
    width: 458px;
    height: 307px;
    background: url(http://f.smarket.net.cn/images/notfind.png) no-repeat;
    left: 50%;
    transform: translate(-50%,-55%);
}
.g-footer{
    position: absolute;
    left: 50%;
    bottom: 10px;
    font-size: 12px;
    transform: translate(-50%);
}