.main-div {
    margin-top: 108px
}

.layui-container {
    width: 800px
}

.layui-col-left, .layui-col-right {
    float: left
}

.layui-col-right {
    padding-left: 70px
}

.layui-col-down {
    padding-top: 15px;
    padding-left: 175px
}

#content {
    width: 430px;
    height: 272px;
    border: 1px solid #d6d6d6;
    padding: 5px 7px
}

#qrcode {
    padding: 5px;
    background-color: #fff
}

#save {
    color: #000;
    background: transparent;
    width: 80px
}

#save:hover {
    color: #666;
    opacity: 1;
    transition: all .3s
}

.gg-download {
    margin-left: 22px !important
}

.black .main-div .layui-col-left #content {
    border-color: #2f2f2f;
    color: #ddd !important
}

.black #save {
    color: #ddd
}

.black #save:hover {
    color: #ddd;
    opacity: .8;
    transition: all .3s
}