.nav-title {
    width: 100%;
    background: #f8f8f8;
}

    .nav-title span {
        font-size: 16px;
        line-height: 48px;
        color: #333;
        max-width: 1200px;
        padding-left: 15px;
        margin: 0 auto;
        display: block;
    }

.nav-list {
    margin: 0 auto;
    max-width: 1200px;
    overflow: hidden;
    border-top: solid 1px #ddd;
    border-bottom: solid 1px #ddd;
}

.nav-list-title {
    font-size: 14px;
    color: #666;
    padding-left: 28px;
    line-height: 45px;
    width: 80px;
    display: inline-block;
}

.nav-list ul {
    padding: 0;
    margin: 0;
    max-width: 1120px;
    float: right;
}

.nav-list-parent li, .nav-list-child li {
    display: inline-block;
    margin: 0 20px;
    font-size: 14px;
    cursor: pointer;
}

    .nav-list-parent li.active, .nav-list-child li.active, .nav-list-parent li:hover, .nav-list-child li:hover {
        color: #015936;
    }

.nav-list-parent li {
    line-height: 45px;
}

ul.nav-list-child {
    margin-bottom: 15px;
    background: #f3f3f3;
    min-width: 90px;
}

.nav-list-child li {
    line-height: 30px;
}

.course-list-tab {
    background: #f3f3f3;
    color: #666;
}

    .course-list-tab span {
        line-height: 46px;
        font-size: 14px;
        margin: 0 12px 0 28px;
        cursor: pointer;
    }

.hide-joined-btn {
    width: 140px;
    float: right;
    margin: 0;
}

p.hide-joined-btn label {
    font-size: 12px;
    color: #999;
    margin-top: 10px;
}

.course-list-tab span.active, .course-list-tab span:hover {
    color: #015936;
}

[type="checkbox"] + label {
    position: relative;
    padding-left: 22px;
    cursor: pointer;
    display: inline-block;
    height: 46px;
    line-height: 46px;
    font-size: 1rem;
    -webkit-user-select: none;
    -moz-user-select: none;
    -khtml-user-select: none;
    -ms-user-select: none;
}

    [type="checkbox"] + label:before, [type="checkbox"]:not(.filled-in) + label:after {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 14px;
        height: 14px;
        z-index: 0;
        border: 1px solid #999;
        border-radius: 3px;
        margin-top: 16px;
        transition: .2s;
    }

[type="checkbox"]:checked + label:before {
    top: -2px;
    left: -5px;
    width: 10px;
    height: 16px;
    border-top: 2px solid transparent;
    border-left: 2px solid transparent;
    border-right: 2px solid #bf3638;
    border-bottom: 2px solid #bf3638;
    -webkit-transform: rotate(40deg);
    transform: rotate(40deg);
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    -webkit-transform-origin: 100% 100%;
    transform-origin: 100% 100%;
}

.course-list-content {
    /*max-width: 1220px;*/
    margin: 0 auto 50px;
    min-height: 500px;
    overflow: hidden;
    width: 1220px;
    /*display: flex;*/
    /*flex-wrap: wrap;*/
}

.course-item {
    width: 20%;
    float: left;
    /*flex: 1;*/
}

.list-item {
    width: 224px;
    height: 215px;
    margin: 20px auto;
}

.teacher-grey-text {
    color: #999;
}

.checked-mark {
    color: #015936;
    border: 1px solid #015936;
    width: 64px;
    line-height: 20px;
    text-align: center;
    border-radius: 12px;
}

.pagination li i {
    font-size: 14px;
}

.pages {
    text-align: center;
    padding-bottom: 30px;
}

span.sort-by-people:after {
    content: "";
    display: inline-block;
    width: 10px;
    margin-left: 3px;
    margin-bottom: -2px;
    height: 19px;
    background: url(../images/pop-arrow.png);
    background-position: bottom;
    background-repeat: no-repeat;
}

span.sort-by-people.active:after {
    background: url(../images/pop-arrow-red.png);
    background-position: bottom;
    background-repeat: no-repeat;
}

.sub-img a img {
    width: 224px;
    height: 146px;
}

@media only screen and (max-width: 480px) {
    .sub-content > div > span {
        padding: 2px;
    }

    .sub-content > div {
        float: right;
    }

    .list-item {
        width: 330px !important;
        height: auto !important;
        margin: 20px auto;
    }

    .sub-img a img {
        width: 100% !important;
        height: 100% !important;
    }
}