.post2 li{
    width: 25%;
    float: left;
    margin-top: 20px;
}
.post2 .news_div{
    margin: 0 18px;
}
.post2 .news_imgs{
    position: relative;
    padding-top: 153.33%;
    overflow: hidden;
    height: 0;
    background: #eee;
}
.post2 .news_imgs img{
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: all 0.6s ease;
}
.post2 .news_title{
    text-align: center;
}