.menu{
    margin-top:80px;
    padding:20px;
}
.menu .title {
    border-bottom: 1px solid #ccc;
    line-height:36px;
    height:36px;
}
.menu .title h3 {
    font-size: 18px;
    float: left;
}

.menu .title a {
    float: right;
    font-size:15px;
    color:#888;
}

.menu>ul >li{
    width:46%;
    position:relative;
    float:left;
    margin:2%;
}
.menu > ul > li > a {
    width: 100%;
    border-radius: 3px;
    background: #e6e6e6;
    display: block;
    height: 36px;
    line-height: 36px;
    text-align:center;
    font-size:15px;
    color:#333;
}
.menu ul li.haschild:after{
    content:'>';
    position :absolute;
    right:5px;
    top:5px;
    color:#888;
}
.menu .sub_menu {
    position: absolute;
    left: 0;
    top: 36px;
    display: none;
    width:100%;
    background:#aaa;
    color:#fff;
    z-index:99;
    padding:10px;
    box-sizing:border-box;
    border-radius:5px;
    font-size:14px;
    line-height:2;
}
.menu .sub_menu:before {
    position: absolute;
    content: '';
    border: 10px solid transparent;
    border-bottom-color: #aaa;
    width: 0;
    height: 0;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
}
.menu .sub_menu li a {
    color: #fff;
}