index.css

.g-wrap{
    width: 360px;
    height: auto;
    margin: 10px auto;
    border: 10px solid #eeeeee;
    padding: 5px;
}
.g-wrap .g-title{
    font-size: 16px;
    font-weight: 700;
    text-align: center;
    background-color: #99cc00;
    color: white;
    margin: 5px;
}
.g-content .m-nav>li{
    margin: 5px;
}
.m-nav .nav-title{
    font-size: 14px;
    font-weight: 500;
    color: white;
    background-color: #99cc00;
    padding-left: 10px;
}
.m-nav .u-nav>li{
    background-color: #77ccff;
    margin: 2px 0;
    font-size: 14px;
    padding-left: 10px;
}
.m-nav .u-nav>li>a{
    color: white;
}