::after&&::before

        
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.courseListModule h2{
    line-height: 50px;
    text-align: center;
}
.courseListModule h2::before,.courseListModule h2::after{
    content: '';
    display: inline-block;
    width: 60px;
    height: 3px;
    margin: 0 6px;
    background-color: #ffa544;
    vertical-align: middle;
}
.courseListModule h2::before{
    background: -webkit-linear-gradient(left, rgba(255,165,68,0), rgba(255,165,68,.7));
    background: linear-gradient(left, rgba(255,165,68,0), rgba(255,165,68,.7));
}
.courseListModule h2::after{
    background: -webkit-linear-gradient(left, rgba(255,165,68,.7), rgba(255,165,68,0));
    background: linear-gradient(left, rgba(255,165,68,.7), rgba(255,165,68,0));
}
.hotCourList{
    font-size: 0;
}
.hotCourList li{
    position: relative;
    display: inline-block;
    width: 25%;
    margin-bottom: 32px;
    padding-right: 4px;
    box-sizing: border-box;
    font-size: 16px;
    color: #818181;
    text-align: center;
    text-overflow: ellipsis;
    white-space: nowrap;
    overflow: hidden;
}
.hotCourList li::before{
    content: '#';
    display: inline-block;
    margin-right: 4px;
    font-size: 14px;
    color: #c2c2c2;
    vertical-align: top;
}
.hotCourList li::after{
    position: absolute;
    right: 0;
    top: 4px;
    content: '';
    display: inline-block;
    width: 1px;
    height: 14px;
    background-color: #d9d9d9;
}
.hotCourList li:nth-of-type(4n)::after{
    display: none;
}

转载于:https://www.cnblogs.com/D-Y-W/p/10607401.html