.container{
    padding: 0;
}
.content{
    color: black;
    text-align: center;
    padding: 0 20px;
}

.content>p{
    text-align: left;
    margin-bottom: 30px;
    margin-top: 50px;
}

.content a{
    color: #404041;
}
.nav-p a{
    color: #828282;
}
.content .title{
    font-size: 30px;
    text-align: left;
    margin-top: 40px;
}

.content .begin-time,.content .time{
    margin-left: 30px;
}

.content .tips{
    font-size: 14px;
    color: #b4b4b4;
    text-align: left;
    margin-top: 20px;
    margin-bottom: 75px;
}

.sections{
    background: #efefef;
    padding-bottom: 75px;
}
.sections .content{
    padding: 0;
}
.sections .vedio-list li{
    float: left;
    margin-left: 20px;
    text-align: left;
    font-size: 13px;
    color: #838383;
    margin-top: 40px;
}
.sections .vedio-list li.fir{
    margin-left: 0;
}

.sections .vedio-list li .title{
    font-size: 17px;
    font-weight: bold;
    color: black;
    margin-top: 20px;
    margin-bottom: 10px;
}