.jiawx-a{
		position:fixed;
    margin:auto;
    left:0;
    right:0;
    top:0;
    bottom:0;
    width:100%;
    height:3rem;
    /*background:#fff;*/
    z-index:999;
    max-width:500px;
		}
.jiawx-a .close1{position: absolute;top:15px;right:15px;cursor: pointer;}

@media screen and (max-width:799px){
	.jiawx-a .pic{
    width:300px;
		}
	.jiawx-a{
    max-width:300px;
		}
}