@media (min-width: 300px) and (max-width: 767px) {
    .h5-sor {
        font-size: 1.3rem;
    }

    .h5-sor small {
        font-size: 75%;
    }

    .course {
        font-size: .8rem;
    }

    .course-items a{
        padding: 1px;
        font-size: .9rem;
    }
    .course-items>div:nth-child(1){
        padding-right: 2px !important;
    }

    .course-items>div:nth-child(2){
        padding-left: 5px !important;
    }

    .course-items a{
        height: 45px;
        border-radius: 10px;
    }
    .course-items button{
        height: 45px;
        border-radius: 10px;
        line-height: 1;
    }
}

@media (min-width: 768px) {
    .h5-sor {
        font-size: 2rem;
    }

    .container-md {
        max-width: 960px;
    }
}


html {
    height: 100%;
}

body {
    position: relative;
    min-height: 100%;
    box-sizing: border-box;
    padding-bottom: 125px; /* .footer 的高度，为 footer 占位 */
}

footer {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 125px;
}

.course-items{
    height: 75px;
}

/*.course-items:nth-child(1)>div:nth-child(1)>div{*/
/*    background-color: red;*/
/*    color: white;*/
/*}*/

.course-items strong{
    font-size: 1rem;
    font-weight: 400;
}

.course-items .left_red{
    width: 3.5rem;
    margin-left: 10px;
    line-height: 1.2;
    padding: 5px!important;
}

.course-items .left{
    width: 3.5rem;
    margin-left: 10px;
    line-height: 1.2;
    padding: 5px!important;
}
.course-items .left div,.course-items .left_red div{
    color: white;
    border-radius: 10px;
    padding: 5px!important;
}
.course-items:nth-child(1) .left div,.course-items .left_red div{
    background-color: #D9001B;
}
.course-items:nth-child(2) .left div{
    background-color: #02A7F0;
}
.course-items:nth-child(3) .left div{
    background-color: #BFBF00;
}

.course-items .right_btn{
    -ms-flex: 0 0 36.333333%;
    flex: 0 0 36.333333%;
    max-width: 36.333333%;
    padding-right: 0;
}
.border-bottom-dashed{
    border-bottom: 1px dashed #dee2e6!important;
}
.border-top-dashed{
    border-top: 1px dashed #dee2e6!important;
}