body {
    overflow-x: hidden;
}

.index-box {
    background-image: url('../img/index.png');
    height: 100%;
    background-size: 100% 100%;
    -moz-background-size: 100% 100%;
    background-repeat: no-repeat;
    position: absolute;
}

.menu {
    width: 40px;
    height: 210px;
    float: left;
    margin-left: 60px;
}

.menu:hover {
    border: solid 3px #8C4C4C;
    transition-duration: 0.2s;
}

.menu:hover .menutitle {
    opacity: 1;
    transition-duration: 0.4s;
}

.menu:hover .menuname {
    background-color: white;
    transition-duration: 0.4s;
}

.menuname {
    width: 30px;
    font-size: 30px;
    margin-left: 25px;
    position: absolute;
    margin-top: 10px;
    opacity: 1;
}

.menuname b {
    font-family: 'GB2312' !important;
}

.menutitle {
    width: 20px;
    height: 80px;
    background-color: #8C4C4C;
    margin-top: 10px;
    margin-left: -10px;
    position: absolute;
    opacity: 0;
}

.qrcode{
    margin-right: 15px;
}