html{
    height: 100%;
}
body.index{
    background: url("../images/jjdq.jpg") no-repeat;
    background-size: 100% 100%;
    height: 100%;
}
a{
    text-decoration: none;
}
.logo{
    padding: 10px;
    margin-bottom: 100px;
}
.active-title {
    width: 100%;
    height: 1rem;
    text-align: center;
    font:30px/40px "微软雅黑";
    color:#ffffff;
}
.nav li{
    width: 100%;
    text-align: center;
    margin: 10px 0 50px;
    padding: 10px 0;
}
.nav li .menu-button{
    display: block;
    background: #3bb4f2;
    width: 240px;
    margin: 0 auto;
    color: #fff;
    border-radius: 10px;
    line-height: 50px;
}