/*///////////////////////////////////////start : visual*/
.breadcrumbs_container {
    /*background: #f2f4f5;*/
    height: 55px;
    width: 100%;
    /*top: -55px;*/
    padding: 15px;
    position: relative;
}

.breadcrumbs ul li a{
    font-family: 'Nanum';
    color:#333;
}



.home {
    width: 100%;
    margin-top: 130px;
    height: auto;
    background: transparent;
    border-bottom:none;
}

.home_slider_container {
    width: 100%;
    height: 100%;
}

.home_slider {
    width: 100%;
    height: 100%;
}

.home_slider_background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center center;
}

.home_slider_content {
    position: absolute;
    top: 41%;
    left: 0;
    width: 100%;
    height: auto;
}

.home_slider_title {
    font-family: 'Roboto Slab', serif;
    font-size: 60px;
    font-weight: 700;
    line-height: 1.2;
    color: #384158;
}

.home_slider_subtitle {
    font-size: 24px;
    color: #76777a;
    margin-top: 9px;
}

.home_slider_form_container {
    width: 832px;
    margin: 0 auto;
    margin-top: 35px;
}

.home_search_form div {
    width: calc(100% - 140px);
    height: 46px;
    background: #FFFFFF;
    border-radius: 3px;
}

.home_search_input {
    width: 33.33333333%;
    border: none;
    outline: none;
    height: 25px;
    padding-left: 20px;
}

.home_search_input:not(:last-child) {
    border-right: solid 1px #e5e5e5;
}

.home_search_input::-webkit-input-placeholder {
    font-family: 'Roboto', sans-serif;
    font-size: 14px !important;
    font-weight: 400 !important;
    color: #b5b8be !important;
}

.home_search_input:-moz-placeholder {
    font-family: 'Roboto', sans-serif;
    font-size: 14px !important;
    font-weight: 400 !important;
    color: #b5b8be !important;
}

.home_search_input::-moz-placeholder {
    font-family: 'Roboto', sans-serif;
    font-size: 14px !important;
    font-weight: 400 !important;
    color: #b5b8be !important;
}

.home_search_input:-ms-input-placeholder {
    font-family: 'Roboto', sans-serif;
    font-size: 14px !important;
    font-weight: 400 !important;
    color: #b5b8be !important;
}

.home_search_input::input-placeholder {
    font-family: 'Roboto', sans-serif;
    font-size: 14px !important;
    font-weight: 400 !important;
    color: #b5b8be !important;
}

.dropdown_item_select {
    position: relative;
    -webkit-appearance: none;
    -moz-appearance: none;
    -ms-appearance: none;
    -o-appearance: none;
    appearance: none;
    -webkit-box-shadow: 0px 0px 0px rgba(0, 0, 0, 0);
    -webkit-user-select: none;
    background-image: url(../images/down.png);
    background-position: center right;
    background-repeat: no-repeat;
    padding-right: 20px;
    padding-left: 20px;
}


.home_slider_nav {
    position: absolute;
    top: 50%;
    width: 50px;
    margin-top: -25px;
    background: #b6b7bd;
    border-radius: 50%;
    text-align: center;
    z-index: 10;
    cursor: pointer;
    -webkit-transition: all 200ms ease;
    -moz-transition: all 200ms ease;
    -ms-transition: all 200ms ease;
    -o-transition: all 200ms ease;
    transition: all 200ms ease;
}

.home_slider_prev {
    left: 75px;
}

.home_slider_next {
    right: 75px;
}

.home_slider_nav i {
    line-height: 50px;
    color: #FFFFFF;
    font-size: 22px;
}

.home_slider_nav:hover {
    background: #0984e3;
}

.container_banner{
    width: 100%;

    background-image: linear-gradient(to right, rgba(68,129,235,1) 0%, rgba(4,191,254,1) 100%);
    background-color: #edeff4;

}

.container_banner.cn_banner{
    background-image: linear-gradient(to right, rgba(235,51,73,1) 0%, rgb(244, 132, 67) 100%);
}

.container_banner.jp_banner{
    background-image: linear-gradient(to right, rgba(142,55,215,1) 0%, rgba(236,119,171,1) 100%);
}


.wrap_banner{
    max-width:1200px;
    margin: auto;
    padding:15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}


.wrap_banner div p{
    display: inline;
    font-size: 17px;
    font-family: 'NanumSquare';
    color:#fff;
    font-weight: 800;
}
.wrap_banner div p:last-of-type{

    margin-right: 120px;
}

.wrap_banner a{
    display: inline-block;
}

.wrap_banner a:first-of-type{
    border:1px solid #fff;
    padding: 4px 10px;
    color:#fff;
    font-size: 17px;
    font-weight: 700;
}

.btn_close img{
    width: 25px;
    height: 25px;
}
/*////////////////////////////////////////////end:visual*/


/*///////////////////////////////////////start : content*/
.courses {
    padding-top: 0;
}

/*****************start : category*/
.courses_search_container {
    margin: 0px 0 30px;
    padding: 20px 30px;
}

.nav_category,
.nav_category2,
.nav_category3 {
    float: left;
    width: 700px;
    padding: 10px 0 5px;
}

.nav_category li,
.nav_category2 li,
.nav_category3 li {
    display: inline-block;
    margin-right: 35px;
    margin-bottom: 5px;
    font-weight:700;
}

.nav_category li:last-child {
    margin-right: 0;
}

.nav_category li a ,
.nav_category2 li a ,
.nav_category3 li a {
    font-size: 17px;
    color: #384158;

}





.nav_category li a:hover,
.nav_category li.active a {
    color: #0984e3;
}

.c_search_form {
    width: 280px;
    float: right;
    height: auto;

    position: relative;
}

.btn_search {
    position: absolute;
    right: 11px;
    top: 12px;
    font-size: 17px;

}

.c_search_input {
    width: 280px;
}

.c_search_input::placeholder {
    color: #76777a;
}

.box_result_search {
    margin-bottom: 50px;
    display: -webkit-flex;
    display: -moz-flex;
    display: -ms-flex;
    display: -o-flex;
    display: flex;
    align-items:center;
    flex-direction: row-reverse;

}

.r_search{
    display: flex
}

.box_level li {
    display: inline-block;
    margin-right: 10px;
    margin-top: 5px;
}

.box_level .cardType a,
.box_level .boardType a{
    width:50px;
}

.cardType img{
    width:40%;
}
.boardType img{
    width:32%;
}

.box_level li:last-of-type {
    margin-right: 15px;
}

.box_level li.active a {
    background: #0984e3;
    color: #fff;
    border: 1px solid #0984e3;
}


.box_level li a {
    line-height: 30px;
    width: 80px;
    text-align: center;
    display: block;
    border-radius: 25px;
    border: 1px solid #d9d9d9;
    color: #384158;
    font-size: 13px;
}

.c_search_select {
    width: 180px;
    height: 40px;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    padding-left: 10px;
    color: #76777a;
    font-size: 13px;
    font-family: 'Nanum';
}

.c_search_select::-ms-expand {
    display: none;
}
.c_listType img{
    width: 15px;
    height: 15px;
}
.c_listType{
    width: 50%;
    line-height: 32px;
    float:right;
}

.c_listType:after{
    display:block;
    clear:both;
    content:"";
}

.c_listType>div{
    width: 50px;
    float: right;
    text-align:center;
    border-radius: 25px;
    border: 1px solid #d9d9d9;
    color: #384158;
    font-size: 13px;
}

.c_cardType{
    margin-left: 6%;
}

/*start : m_category*/
.box_m_category {
    background: #f2f4f5;
    position: relative;
    padding: 15px 0 10px 15px;
    margin: 30px 0 25px;
}

.c_nav ul{
    padding-right: 20px;
}

.c_nav ul li {
    display: inline-block;
    color: #333;
    margin-right: 25px;
    margin-bottom: 5px;
}

.c_nav ul li a {
    color: #333;
    font-size: 14px;
    font-weight: 800;
}

.c_nav ul li.active a {
    color: #0984e3;
}

/*
.c_nav {
    width: 85%;
    text-align: center;
    overflow: hidden;
}

.c_nav .swiper-slide a {
    font-size: 14px;
    color: #384158;
}

.c_nav .swiper-slide.clip_fz a {
    font-size: 12px;
}





.c_nav .swiper-slide.active a {
    color: #0984e3;
}
*/

.btn_m_search {
    position: absolute;
    right: 15px;
    top: 15px;
    font-size: 17px;
}

.btn_m_search:active,
.btn_m_search:hover {

    color: #0984e3;
}



.m_search_form {
    width: 250px;
    margin-top: 15px;
    margin-right: 15px;
    display: none;

}

.m_search_form .m_search_input {
    width: 185px;
    height: 35px;
    margin-right: 5px;
}

.btn_m_search2 {
    display: inline-block;
    padding: 0 15px;
    height: 35px;
    line-height: 35px;
    color: #fff;
    border-radius: 3px;
}

.btn_m_search2:acive {
    color: #fff;
}


/*end : m_category*/
/*****************end : category*/

/*****************start : list*/
.courses_row {
    margin-top: 0;
}

/*****************End : list*/
/*board Type start*/
#js_btn_plus{
    padding-top: 3vw;
}

.board_course{
    border-bottom: 1px solid #000;
    padding-top: 2em;
    padding-bottom: 2em;

}

.board_course:after{
    content: "";
    display: block;
    clear: both;
}

.board_course>div{
    float: left;
    margin-left: 20px;
}

.board_course_image{
    width:20%;
}

.board_course>div:nth-of-type(2){
    width:40%;
    margin-top: 1.3em;
}

.board_course>div:nth-of-type(3){
    width:30%;
    margin-top: 3em;
}


.board_course_image img{
    width: 100%;
}


/****************start 6: lecture*/
.course p {
    font-family: 'Nanum';
    font-size: 13px;

}

.course_image{
    height: 200px;
}
.course_title {
    font-family: 'NanumSquare';
    font-weight: 800;
    font-size: 17px;
    color: #384158;
    transition: all 200ms ease;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.course_title:hover{
    color:#0984e3;
}

.course_image img {
    width: 100%;
}

.course_body {
    padding: 22px 25px 23px;
}

.course_info {
    font-size: 13px;
    color: #384158;
    margin-right: 18px;
}

.course_info:last-child {
    margin-right: 0;
}

.course_info span{
    margin-left: 5px;
}


.course_footer_content{
    padding: 7px 0;
}

.clip_level .box_tool a{
    border-radius:25px;
    border:1px solid rgba(51,51,51,0.4);
    padding: 3px 6px;
    font-size: 11px;
    font-family: 'Nanum';
    color:rgba(51,51,51,0.4);
    font-weight: 800;
}



.clip_level .box_tool a:first-of-type{
    margin-right: 8px;
}


.clip_level .box_tool a img{
    opacity: 0.4;
    margin-right: 2px;
    width: 10px;
    height: 10px;
}

.clip_level .box_tool a img:last-of-type,
.clip_level .box_tool a.active img:first-of-type{
    display: none;
    opacity: 1;
}

.clip_level .box_tool a:first-of-type.active{
    background: #E74C3C;
    border-color:#E74C3C;
    color:#fff;
}
.clip_level .box_tool a:last-of-type.active{
    background: #04C56B;
    border-color:#04C56B;
    color:#fff;
}

.clip_level .box_tool a.active img:last-of-type{
    display: inline-block;
}

#js_load, #js_clip_load{
    width: 100%;
}
.js_load, .js_clip_load {
    display: none;
}

.js_load.active,
.js_clip_load.active {
    display: block;
}

#js_btn_plus,
#js_clip_plus {
    text-align: center;
    width: 100%;
}

.btn_plus,
.clip_plus {
    display: inline-block;
    padding: 10px 50px;
    color: #fff;
    font-size: 17px;
    border-radius: 3px;
    font-weight: 800;
}

.btn_plus:hover,
.btn_plus:active,
.btn_plus:focus {
    color: #fff;
}



/*start : side content*/

.follow_none,
.follow_after{
    text-align: center;
    height: 117px;
}


.follow_none span,
.follow_after span{
    font-size: 14px;
    font-family: 'Nanum';
    font-weight: 700;
    line-height: 90px;
    display: block;
}

.follow_after a{
    display: inline-block;
    background: #333;
    border-radius: 3px;
    color: #fff;
    font-weight: 800;
    font-size: 17px;
    padding: 5px 40px;
    margin-top: -20px;
}


.sidebar_section_title {
    line-height: 20px;
    font-family: 'NanumSquare';

}

.sidebar_latest {
    margin-top: 25px;
}

.latest_image div {
    width: 140px;
    height: auto;
}

.lastest_sub_title {
    font-size: 13px;
    overflow: hidden;

    text-overflow: ellipsis;
    white-space: nowrap;
    width: 175px;
}

.latest_title {
    font-family: 'Nanum';
    font-size: 15px;
    font-weight: 700;
    color: #383749;
    -webkit-transition: all 200ms ease;
    -moz-transition: all 200ms ease;
    -ms-transition: all 200ms ease;
    -o-transition: all 200ms ease;
    transition: all 200ms ease;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    word-wrap: break-word;
    line-height: 20px;
    height: 40px;
    width: 175px;
    word-wrap: break-word;
}

.latest_title.ie_txt::after{
    content:'...';
    display: inline;
    color:#383749;
    position: absolute;
    right: 0;
    bottom: 0;
}


.latest_title:hover {
    color: #0984e3;
}

.progress {
    position: absolute;
    bottom: 0;
    margin-bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
}

.latest_image .progress-bar {
    height: 8px;
    background: #0984e3;
}



.latest_image .clip_label{
    position: absolute;
    left: 5px;
    top: 5px;
}

.latest_image .update,
.latest_image .att,
.latest_image .no_att{

    display: none;
    background: #73d29e;
    font-size: 11px;
    border-radius: 3px;
    color: #fff;
    font-weight: 700;
    padding: 0 5px;
    font-family: 'Nanum';
}

.latest_image.clip_update .update,
.latest_image.clip_att .att,
.latest_image.clip_no_att .no_att{
    display: inline-block;
}

.latest_image .no_att{
    background: #333;
}



.latest_image .update{
    background: #0984e3;
}




/*end : side content*/

/****************end : lecture*/

/***************************start : clip*/

.clip_con {
    width: 100%;
    margin-bottom: 35px;
}

.clip_thumbnail {
    border-radius: 5px;
    overflow: hidden;
    float: left;
    padding: 0;
    width: 33.33333333%;
    height: auto;
}

.clip_thumbnail img {
    width: 100%;
}

/*gray bg hover*/
.clip_thumbnail a:hover:after,
.latest_image div:first-of-type:hover:after,
.course_image:hover:after,
.board_course_image:hover:after{
    content:'';
    display: block;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    position: absolute;
    left: 0;
    top: 0;
    z-index: 1;
}

.clip_thumbnail a:after,
.latest_image div:first-of-type:after,
.course_image:after,
.board_course_image:after{
    transition: all 200ms ease;

}

.clip_thumbnail a .play,
.latest_image div:first-of-type .play,
.course_image .play,
.board_course_image .play{
    opacity: 0;
    display: none;
    transition: all 200ms ease;

}

.clip_thumbnail a:hover .play,
.latest_image div:first-of-type:hover .play,
.course_image:hover .play,
.board_course_image:hover .play{
    font-size: 30px;
    color:#fff;
    position: absolute;
    left: 50%;
    top: 50%;
    margin-top: -15px;
    margin-left: -15px;
    opacity: 1;
    display: block;
    z-index: 2;
}

.latest_image div:first-of-type:hover .play{
    font-size: 20px;
    margin-top: -10px;
    margin-left: -10px;
}

.clip_label{
    position: absolute;
    left: 10px;
    top: 10px;
}

.update,
.att,
.no_att,
.ing_att{

    display: none;
    background: #04c56b;
    font-size: 14px;
    border-radius: 3px;
    color: #fff;
    font-weight: 700;
    padding: 0 5px;
    font-family: 'Nanum';
}

.clip_thumbnail.clip_update .update,
.clip_thumbnail.clip_att .att,
.clip_thumbnail.clip_no_att .no_att,
.clip_thumbnail.clip_ing_att .ing_att{
    display: inline-block;
}

.no_att{
    background: #333;
}

.ing_att{
    background: #ffa800;
}




.update{
    background: #0984e3;
}








.clip_content {
    padding-left: 20px;
    float: right;
    padding-right: 0;
    width: 66.66666667%;
}


.clip_info h3 {
    font-family: 'NanumSquare';
    font-weight: 800;
    color: #384158;
    transition: all 200ms ease;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    margin: 10px 0;
    font-size: 20px;

}

.clip_info h3:hover{
    color:#0984e3;
}

/*.clip_info div  {
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    word-wrap: break-word;
    line-height: 30px;
    height: 85px;
    width: 96%;
    font-size: 14px;
    color: #76777a;
}

.clip_info.active > div {
    height: auto;
    -webkit-line-clamp: 10;
    cursor: pointer;

}*/

.clip_ex{
    font-size: 14px;
    color: #76777a;
    line-height: 30px;
    cursor: pointer;
    font-family: 'Nanum';

}
.clip_info.active .clip_tag{
    display: block;
}

.btn_txt_more{
    cursor: pointer;
    font-weight: 400;
    font-family: 'Nanum';
}

/*.clip_info.active span{
    display: none;
}

.clip_info span {
    position: absolute;
    right: -5px;
    bottom: 2px;
    font-size: 10px;
    font-weight: 700;
}*/

.tags_list li {
    padding: 0;
}

.tags_list li a {
    font-family: 'notosanssc',sans-serif ;
    padding: 0 10px;
    font-size: 11px;
    line-height: 20px;
}


.clip_tag{
    margin-top: 10px;
    display: none;
}


/***************************end : clip*/

/*clip_con_사용법*/
.clip_con_wrap > img {width: 100%;}

.clip_con_wrap > a {display: block; z-index: 9;}
.clip_con_wrap > a > img {position: absolute; width: 15px; height: 15px; top: 15px; right: 15px;}





/*//////////////////////////////////////end: content*/
@media only screen and (max-width: 1200px) {
    .breadcrumbs_container {
        top: 165px;
        height: 40px;
        padding: 10px;
    }


    .wrap_banner{
        width: 960px;
    }
    .wrap_banner div{
        font-size: 16px;
    }

    .wrap_banner div p:last-of-type{
        margin-right: 65px;
    }

    .home_slider_nav {
        display: none;
    }

    .box_level li {
        margin-right: 4px;
    }

    .box_level li a {
        width: 60px;
    }

    .c_search_select {
        width: 160px;
        font-family: 'NanumSquare';
    }

    .lastest_sub_title,
    .latest_title {
        width: 150px;
    }

    .home {
        margin-top: 165px;
    }

    .clip_info h3{
        font-size: 17px;
    }

    .clip_ex{
        line-height: 21px;
        font-family: 'NanumSquare';
    }

    .btn_txt_more{
        font-family: 'NanumSquare';
    }


}

@media only screen and (max-width: 1199px) {

}



@media (min-width: 992px) {
    .result_num {
        max-width: 58.2%;
    }

}


@media only screen and (max-width: 992px) {
    .sidebar_section {
        width: 50%;
        float: left;
    }

    .box_result_search{
        display: block;
        margin-bottom: 15px;
    }

    .result_num {
        max-width: 100%;
        padding-top: 10px;
    }


    .wrap_banner div{
        width: 380px;
        line-height: 20px;
        margin-right: 100px;
    }


    .wrap_banner{
        width: 720px;
    }

    .wrap_banner div p{
        display: block;
        margin-bottom: 0;
    }

}

@media only screen and (max-width: 768px) {

    .box_m_category {
        margin-bottom: 15px;
    }

    .box_level {
        margin-bottom: 15px;
    }

    .box_level li a {
        width: 90px;
    }

    .lastest_sub_title,
    .latest_title {
        width: 160px;
    }

    .box_result_search {
        margin: 0 0 15px;
    }


    .clip_ex{
        line-height: 25px;
    }

    .clip_info h3{
        font-size: 20px;
    }

}







@media only screen and (max-width: 767px) {
    .breadcrumbs_container {
        top: 125px;
        height: 40px;
        padding: 10px;
    }

    .home {
        margin-top: 125px;
    }


    .box_m_category {
        margin-bottom: 15px;
    }

    .m_search_select {
        height: 35px;
    }

    .box_level {
        margin-bottom: 15px;
    }

    .box_level li {
        margin-top: 0;
    }

    .box_level li a {
        width: 70px;
    }

    .m_search_select {
        width: 130px;
    }

    .m_content {
        display: flex;
        justify-content: flex-start;
        align-items: center;
        flex-direction: row;
        padding: 15px;
    }

    .course_image {
        width: 200px;
        border-radius: 5px
    }

    .course_title {
        width: 260px;
    }



    .course_body {
        padding: 20px;
        padding-right: 0;
    }

    .sidebar_section {
        width: 100%;
    }

    .latest_image div {
        width: 200px;
    }

    .course_title {
        overflow: hidden;
        text-overflow: ellipsis;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        word-wrap: break-word;
        line-height: 25px;
        /*height: 50px;*/
        width: 260px;
        word-wrap: break-word;
        white-space: normal;
    }

    .lastest_sub_title,
    .latest_title {
        width: 290px;
    }



    .wrap_banner{
        width: 510px;
    }

    .wrap_banner div{
        margin-right: 0;
        width: 270px;
    }

    .wrap_banner div p{
        font-size: 16px;
    }
    .wrap_banner div p:last-of-type{
        margin-right: 0;
    }

    .wrap_banner a:first-of-type{
        font-size: 15px;
    }

    .box_tool{
        display: flex;
        justify-content: flex-start;
    }

    .box_tool a{
        border-radius: 50%;
        width: 24px;
        height: 24px;
        display: inline-block;
        padding: 0;
        display: flex;
        justify-content: center;
        align-items: center
    }

    .box_tool a span{
        display: none;
    }

    .clip_level .box_tool a img{
        margin-right: 0;
        width: 12px;
        height: 12px;
    }


    .board_course>div:nth-of-type(2) {
        width: 51%;
        margin-top: 0vw;
    }
    .board_course>div:nth-of-type(2) p{
        /*font-size: 1.7vw;*/
        line-height:3vw;
    }
    .board_course>div:nth-of-type(2) h3{
        /*font-size: 2.1vw;*/
        line-height: 3vw;
        display: contents;
    }
    .board_course>div:nth-of-type(3) {
        width: 16%;
        margin-top: 0em;
    }
    .course_info {
        /* margin-right: 0; */
    }
}


@media only screen and (max-width: 675px){
    .clip_info h3{
        font-size: 17px;
    }

}



@media only screen and (max-width: 414px) {
    .course_image{
        height: 70px;
    }
    .wrap_banner{
        width: 375px;
        display: block;
    }

    .wrap_banner div{
        margin-right: 0;
    }

    .btn_close{
        position: absolute;
        right: 10px;
        top: 50%;
        margin-top: -12.5px;
    }

    .breadcrumbs_container {
        top: 105px;
        height: 40px;
        padding: 10px;
    }


    .box_level li a {
        width: 56px;
        margin-right: 0px;
    }

    .lec_box_level li a{
        width: 45px;
    }

    .lec_box_level li:last-of-type{
        margin-right: 0;
    }

    .course_title {
        width: 285px;
    }

    .sidebar_section {
        width: 100%;
        float: none;
    }

    .home{
        margin-top: 105px;
    }

    .m_content {
        display: flex;
        justify-content: flex-start;
        align-items: center;
        flex-direction: row;
        padding: 0px 15px;
    }

    .course_image {
        width: 124px;
        border-radius: 5px;
        margin: 15px 0;
    }

    .course_title {
        width: 165px;
        margin-bottom: -7px;
    }

    .course_body {
        padding: 10px 0 10px 15px;
    }

    .latest_image div {
        width: 140px;
    }

    .lastest_sub_title,
    .latest_title {
        width: 160px;
    }

    .course_col:not(:last-child){
        margin-bottom: 25px;
    }

    .clip_content{
        padding: 15px 0;
        padding-bottom: 30px;
    }

    .clip_info h3{
        font-size: 17px;
    }


    .clip_info div{
        font-size: 13px;
    }

    .clip_con{
        border-bottom: 1px solid #f2f4f5;
    }
    .clip_thumbnail{
        width: 100%;
    }

    .clip_content{
        width: 100%;
        max-width: 100%;
    }

    .clip_info h3{
        font-size: 20px;
    }

    .r_search{
        display: block;
    }

    .board_course {
        padding-bottom: 1.2em;
    }
    .board_course>div {
        float: left;
        margin-left: 15px;
    }
    .board_course_image {
        width:35%;
    }

    .board_course>div:nth-of-type(2) {
        width: 51%;
        margin-top: 0vw;
        /* margin-bottom: 13vw; */
    }
    .board_course>div:nth-of-type(2) p{
        font-size: 13px;
        line-height:3vw;
        margin-bottom: 2.5vw;
    }
    .board_course>div:nth-of-type(2) h3{
        font-size: 15px;
        line-height: 3vw;
        display: contents;
    }
    .board_course>div:nth-of-type(3) {
        width: 100%;
        text-align: center;
        margin-top: 1em;
    }
    .course_info {
        /* margin-right: 0; */
        font-size: 4.5vw;
    }
    .course_info span {
        margin-left: 5px;
        font-size: 3.5vw;
    }

}
@media only screen and (max-width: 375px) {

    .btn_close{
        position: absolute;
        right: 20px;
        top: 50%;
        margin-top: -12.5px;
    }
}

@media only screen and (max-width: 360px) {
    .course_image {
        width: 120px;
    }

    .course_title {
        width: 150px;
    }

    .lec_box_level li a{
        width: 42px;
    }
}


@media only screen and (max-width: 320px) {

    .box_level li a {
        width: 50px;
        margin-right: 0px;
    }

    .m_search_select {
        width: 110px;
    }

    .course_title {
        width: 130px;
    }
    .lec_box_level li{
        margin-right: 0;
    }

    .lec_box_level li a{
        width: 40px;
    }

    .course_body {
        padding: 20px 10px;
    }

    .latest_image div {
        width: 120px;
    }

    .lastest_sub_title,
    .latest_title {
        width: 140px;
    }


}