.teach_total {
    width: 1200px;
    height: 320px;
    border: 1px solid #DDDDDD;
    margin-bottom: 30px;
}

.teach_title {
    width: 100%;
    height: 40px;
    line-height: 40px;
    background-color: #8B0017;
}

.teach_width {
    margin-left: 15px;
    margin-right: 15px;
}

.teach_title .titel p {
    font-size: 20px;
    color: #fff;
    font-weight: bold;
}

.teach_title .more a {
    font-size: 12px;
    color: #fff;

}

.teach_cont {
    margin: 15px;
}

.teach_cont .cont_left {
    width: 465px;
    height: 230px;
    padding: 10px;
    border: #DDDDDD solid 1px;
}

.teach_cont .cont_left .heading {
    font-weight: bold;
    font-size: 18px;
    color: #FB3F1E;
}

.teach_cont .cont_left p {
    display: inline-block;
    width: 455px;
    padding-top: 10px;
    text-indent: 2em;
    font-size: 16px;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 8;
    overflow: hidden;
}

.teach_cont .cont_left a {
    color: #DC143C;
    float: right;
}

.pic_right {
    width: 680px;
}

.pic_right ul {
    width: 730px;
}

.pic_right ul li {
    float: left;
    width: 160px;
    margin-left: 10px;
    margin-bottom: 10px;
    position: relative;
    overflow: hidden;
}

.pic_right img {
    display: block;
    width: 160px;
    height: 120px;
}

.pic_right .img_btn {
    position: absolute;
    text-align: center;
    font-size: 16px;
    bottom: 0;
    left: 0;
    width: 160px;
    background-color: rgba(0, 0, 0, 0.6);
    color: #fff;
}

.pic_right .img_btn:hover {
    transform: scale(1.1);
}