.bayWindow {
    padding: 10px 10px 0 0;
    left:20px; 
    visibility:hidden;
    position:fixed; 
    top:20px;
}

.bayWindow .close {
    position: absolute;
    right: 0px;
    top: 0px;
    border-radius: 50%;
    background: #fff;
    padding: 2px;
    text-decoration: none;
    color: #999;
    width: 20px;
    height: 20px;
    text-align: center; 
    line-height: 20px;
    box-shadow: 1px 1px 10px rgba(0, 0, 0, 0.1);
}
@media screen and (max-width:996px) {
    .bayWindow {
        display: block;
    }
}