.clearfix:after {
    display: block;
    clear: both;
    content: "";
    visibility: hidden;
    height: 0
}

.clearfix {
    zoom: 1
}

.fl {
    float: left;
}

.fr {
    float: right;
}

#header {
    left: 0;
    top: 0;
    width: 100%;
    z-index: 1000;
    position: fixed;
    background-color: #393D49 !important;
}

.logo {

}

.top-nav {
    margin-left: 100px;
}

.search {
    position: absolute;
    top: 15px;
    right: 240px;
}

.search .layui-input {
    height: 30px;
    font-size: 12px;
}

#main {
    margin-top: 80px;
    margin-bottom: 40px;
}

#footer {
    padding: 30px 0;
    text-align: center;
    background: #474443;
}

#footer span, #footer a {
    color: #999;
}

#footer a:hover {
    color: #fff;
}

.bottom-nav, .copyright {
    margin-bottom: 10px;
    line-height: 18px;
}

.bottom-nav a, .copyright span, .copyright a {
    margin-right: 10px;
}

.pager {
    text-align: center;
}

.index-module {
    margin-bottom: 15px;
}

.index-module .layui-tab-title {
    border: none;
}

.index-module .layui-tab-content {
    padding: 20px 0;
}

.index-module .header {
    text-align: center;
    font-size: 20px;
    line-height: 30px;
}

.index-module .content {

}

.index-carousel {
    margin-bottom: 30px;
    text-align: center;
}

.index-carousel .slide {
    width: auto;
    height: 270px;
    max-height: 270px;
}

/**
 *search
 */
.search-course-card .cover {
    width: 210px;
    height: 118px;
    margin-bottom: 10px;
}

.search-course-card .cover img {
    width: 100%;
    height: 100%;
}

.search-course-card .title {
    width: 210px;
    white-space: nowrap;
    margin-bottom: 10px;
    overflow: hidden;
}

.search-course-card .meta {
    color: #999;
    font-size: 12px;
}

.search-course-card .meta span {
    margin-right: 10px;
}

.search-course-card .price {
    color: red;
}

.search-course-card .free {
    color: green;
}

.course-card {
    float: left;
    width: 20%;
    height: 200px;
}

.course-card .cover {
    width: 210px;
    height: 118px;
    margin-bottom: 10px;
}

.course-card .cover img {
    width: 100%;
    height: 100%;
}

.course-card .title {
    width: 210px;
    white-space: nowrap;
    margin-bottom: 10px;
    overflow: hidden;
}

.course-card .meta {
    color: #999;
    font-size: 12px;
}

.course-card .meta span {
    margin-right: 10px;
}

.course-card .price {
    color: red;
}

.course-card .free {
    color: green;
}

.course-filter {
    margin-bottom: 20px;
}

.filter-group {
    height: 40px;
    line-height: 40px;
}

.filter-group .title {
    float: left;
    width: 50px;
    font-weight: 700;
}

.filter-group .content {
    float: left;
}

.filter-group .content a {
    margin-right: 15px;
}

.course-list {
    margin-bottom: 20px;
}

.course-meta .left {
    float: left;
}

.course-meta .right {
    float: right;
}

.course-body {
}

.course-body .content {
    float: left;
    width: 780px;
}

.course-body .sidebar {
    float: left;
    width: 320px;
}