.video_list {
    justify-content: space-between;
    flex-wrap: wrap;
}

.video_div {
    display: block;
    margin-bottom: 40px;
    width: calc((100% - 27px) / 2);
}

.video_div .imgBox {
    padding-bottom: 63.5%;
}

.video_div .imgBox lite-youtube {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.video_div .imgBox lite-youtube > .lty-playbtn{
    display: none !important;
}
.video_div .imgBox b {
    display: block;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 66px;
    height: 66px;
    background: #00000015;
    border-radius: 50%;
}

.video_div .imgBox b::before {
    content: '';
    display: inline-block;
    width: 53px;
    height: 53px;
    background: #000000;
    border-radius: 50%;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.video_div .imgBox b::after {
    content: '';
    display: inline-block;
    width: 12.8px;
    height: 20px;
    background: url('img/play.png') no-repeat;
    background-size: 100% 100%;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.video_div_tit {
    font-family: Poppins;
    font-weight: bold;
    font-size: 24px;
    color: #000000;
    margin: 30px 0 10px;
    line-height: 1.5em;
    height: 1.5em;
    overflow: hidden;
}

.video_div_desc {
    font-family: Poppins-Light;
    font-weight: 300;
    font-size: 16px;
    color: #666666;
    line-height: 1.5em;
    height: 3em;
    overflow: hidden;
}

.video_div_btn {
    display: inline-block;
    border: 1px solid #000000;
    height: 40px;
    line-height: 40px;
    padding: 0 35px;
    font-family: Poppins-Light;
    font-weight: 300;
    font-size: 16px;
    color: #000000;
    margin-top: 15px;
}

.video_div:hover .video_div_btn {
    background: #000;
    color: #fff;
}

.video_div:hover .video_div_tit {
    color: #2858A4;
}

@media only screen and (max-width:950px) {
    .video_div_tit {
        font-size: 20px;
        height: auto;
    }

    .video_div {
        width: 100%;
        margin-bottom: 30px;
    }

    .video_div_desc {
        height: auto;
    }
}