.list2 {
}
.list2 .item {
    background: #fff;
    border-radius: 4px;
    padding: 16px;
    box-shadow: 0 0 10px 0 #e9e9e9;
    box-sizing: border-box;
    width: 386px;
    float: left;
    margin: 0 20px 20px 0;
    position: relative;
}
.list2 .item .icon {
    width: 100px;
    height: 100px;
    border-radius: 8px;
    overflow: hidden;
    display: block;
    position: absolute;
    top: 58px;
    left: 0;
    right: 0;
    margin: 0 auto;
    z-index: 2;
    opacity: 0;
}
.list2 .item .name {
    font-size: 20px;
    padding: 10px 0 5px;
    line-height: 30px;
}
.list2 .item .desc {
    font-size: 16px;
    color: #999;
}
.list2 .item:hover:after {
    content: '';
    width: 354px;
    height: 200px;
    position: absolute;
    top: 16px;
    left: 16px;
    background: rgba(0, 0, 0, 0.5);
}
.list2 .item:hover .icon {
    opacity: 1;
}
.list2 .item:nth-child(3n) {
    margin-right: 0;
}