@keyframes activeBtn{
    from{
        background-color: white;
        border: 1px solid #dbdbdb;
    }
    to{
        background-color: orange;
        color: white;
        border: none;
    }
}
@media screen and (max-width: 754px){
    .course-summary-sidebar{
        height: 345px;
    }
    .course-summary-sidebar{
        width: 100%;
    }
    .course-body_breadcrumbs{
        display: none;
    }
    .form-add-course-to-cart{
        display: none;
    }
    .form-add-course-to-cart.active{
        display: block;
    }
    .course-header{
        background-color: #442e66;
        color: white;
        height: 200px;
    }
    .course-header_content{
        margin: 0 20px;
    }
    .course-header_header_title{
        margin-top: 70px;
        font-size: 30px;
        font-weight: 600;
    }
    .meta-data{
        display: flex;
        width: 50%;
    }
    .course-header_header_meta-data{
        display: flex;
        justify-content: space-around;
        width: 100%;
        margin-top: 10px;
    }
    .meta-data i{
        color: orange;
        margin-right: 10px;
    }
    .meta-data p{
        font-weight: 100;
    }
    .course-body_content{
        margin: 40px 20px;
        display: flex;
        flex-direction: column-reverse;
    }
    .breadcrumbs{
        color: gray;
    }
    .breadcrumbs.active{
        color: black;
        font-weight: 600;
    }
    .right-side .price{
        font-size: 24px;
    }
    .btn-buy-course{
        width: 100%;
        height: 50px;
        background-color: white;
        border: 1px solid gray;
        border-radius: 5px;
        font-size: 18px;
        margin-top: 20px;
    }
    .course-summary-sidebar img{
        display: block;
        margin: auto;
    }
    .course-body_nav-tabs{
        display: flex;
        list-style-type: none;
        margin-top: 35px;
        border-top: 3px solid orange;
        padding-left: 0;
    }
    .course-body_nav-tabs li{
        width: 129%;
        text-align: center;
    }
    .course-body_nav-tabs li.active{
        background-color: white;
    }
    .course-body_nav-tabs li{
        width: 100%;
        height: 100%;
        padding: 10px 0;
        background-color: #e0e0e0;
    }
    .course-description p{
        margin-bottom: 15px;
        font-size: 18px;
    }
    .tab-info.active{
        display: block;
    }
    .tab-info{
        display: none;
    }
    .course-description img{
        width: 100%;
        margin-bottom: 20px;
    }
    .review-course_tab-lesson{
        display: flex;
        list-style-type: none;
    }
    .review-course_tab-lessons{
        padding-left: 0;
    }
    .fa-file-o{
        padding-right: 5px;
    }
    .form-add-course-to-cart{
        text-align: center;
        width: 100%;
        height: 50px;
        margin-top: 20px;
        border-radius: 10px;
    }
    .btn-continue-course{
        padding: 15px;
        display: block;
        width: 100%;
        height: 100%;
        color:#ff1053;
    }
    .accessLevel{
        display: none;
    }
    .accessLevel.active{
        display: block;
    }
    .review-course_tab-lesson i.fa-file-o {
            color: orange;
            font-weight: 700;
        }
        .review-course_tab-lesson a, .review-course_tab-lesson p {
            color: #333;
            font-size: 16px;
            font-weight: 600;
            margin-left: 20px;
        }
    .review-course_tab-lesson {
            display: table-cell;
            list-style: none;
            padding-left: 15px;
            height: 30px;
            vertical-align: middle;
            display: flex;
        }
        .link-course {
                display: block;
                width: 680px;
            }
}
@media screen and (min-width: 755px) and (max-width: 1159px){
    .course-body_content{
        display: flex;
    }
    .btn-continue-course {
            margin: 30px 20px;
            display: block;
            width: 260px;
            height: 35px;
            background-color: white;
            border: 2px solid #ff1053;
            color: #ff1053;
            border-radius: 15px;
            cursor: pointer;
            font-size: 16px;
            text-align: center;
            padding-top: 15px;
        }
    .accessLevel{
        display: none;
    }
    .tab-info{
        display: none;
    }
    .tab-info.active{
        display: block;
    }
    .accessLevel.active{
        display: block;
    }
    .form-add-course-to-cart{
        display: none;
    }
    .form-add-course-to-cart.active{
        display: block;
    }
    .course-header {
            background-color: #442e66;
            color: white;
            height: 200px;
        }
    .course-header_header_title {
            margin-top: 70px;
            font-size: 30px;
            font-weight: 600;
        }
    .course-header_header_meta-data {
            display: flex;
            justify-content: space-around;
            width: 100%;
            margin-top: 10px;
        }
    .meta-data {
            display: flex;
            width: 50%;
        }
        .meta-data i {
            color: orange;
            margin-right: 10px;
        }
    .meta-data p {
            font-weight: 100;
        }
    .course-body_breadcrumbs {
            padding: 23px;
        }
    .breadcrumbs {
            color: #666;
            font-weight: 300;
            font-size: 14px;
        }
    .breadcrumbs.active {
            font-weight: 700;
        }
    .course-body_nav-tabs {
            display: flex;
            list-style: none;
            font-weight: 600;
            padding-left: 0;
        }
    .nav-tab.active {
            color: orange;
            background-color: white;
            border-top: 5px solid orange;
        }
    .nav-tab {
            width: 50%;
        }
    .nav-tab {
            color: rgb(126, 126, 126);
            background-color: #e1e1e1;
            text-align: center;
            padding: 20px 0;
            cursor: pointer;
        }
    .review-course_tab-lesson i.fa-file-o {
            color: orange;
            font-weight: 700;
        }
        .review-course_tab-lesson a, .review-course_tab-lesson p {
            color: #333;
            font-size: 16px;
            font-weight: 600;
            margin-left: 20px;
        }
    .review-course_tab-lesson {
            display: table-cell;
            list-style: none;
            padding-left: 15px;
            height: 30px;
            vertical-align: middle;
            display: flex;
        }
        .link-course {
                display: block;
                width: 310px;
            }
}
@media screen and (min-width: 1160px) {
    .content{
        width: 1140px;
        margin: auto;
    }
    .course-header{
        width: 100%;
        height: 200px;
        background-color: #442e66;
    }
    .lesson-link .link-course{
        margin-left: 0;
    }
    .course-body_content{
        display: flex;
        justify-content: space-between;
    }
    .course-header_header_title{
        color: #fff;
        font-size: 30px;
        font-weight: 500;
        padding-top: 68px;
        padding-bottom: 10px;
    }
    .course-header_header_meta-data{
        display: flex;
    }
    .meta-data{
        display: flex;
        width: 120px;
        color: white;
    }
    .meta-data i{
        color: orange;
        padding: 0 5px;
    }
    .meta-data.lessons{
        margin-left: 50px;
    }
    .course-body_breadcrumbs{
        padding: 23px;
    }
    .breadcrumbs{
        color: #666;
        font-weight: 300;
        font-size: 14px;
    }
    .breadcrumbs.active{
        font-weight: 700;
    }
    .course-body_nav-tabs{
        display: flex;
        list-style: none;
        font-weight: 600;
        padding-left: 0;
    }
    .nav-tab{
        color: rgb(126, 126, 126);
        background-color: #e1e1e1;
        text-align: center;
        padding: 20px 0;
        cursor: pointer;
    }
    .nav-tab.active{
        color: orange;
        background-color: white;
        border-top: 5px solid orange;
    }
    .left-side{
        width: 840px;
    }
    .right-side{
        width: 300px;
    }
    .nav-tab{
        width: 50%;
    }
    .course-description p{
        padding: 5px 0;
        color: #666;
        font-size: 16px;
        font-weight: 300;
        line-height: 26px;
    }
    .course-summary-sidebar{
        border: 1px solid #f3f3f3;
        height: 100%;
        box-shadow: 0 15px 20px 0 rgba(0, 0, 0, 0.05);
    }
    .course-summary-sidebar .price{
        margin-top: 25px;
        margin-left: 20px;
        color: #333;
        font-size: 26px;
        font-weight: 500;
    }
    .btn-buy-course{
        margin: 30px 20px;
        width: 260px;
        height: 50px;
        background-color: white;
        border: 1px solid #dbdbdb;
        border-radius: 5px;
        cursor: pointer;
        font-size: 16px;
    }
    .btn-buy-course:hover{
        background-color: orange;
        color: white;
        border: none;
        animation-duration: 0.3s;
        animation-name: activeBtn;
    }
    .btn-continue-course {
        margin: 30px 20px;
        display: block;
        width: 260px;
        height: 35px;
        background-color: white;
        border: 2px solid #ff1053;
        color: #ff1053;
        border-radius: 15px;
        cursor: pointer;
        font-size: 16px;
        text-align: center;
        padding-top: 15px;
    }
    .btn-continue-course:hover{
        background-color: #ff1053;
        color: white;
    }
    .review-course_tab-lesson{
        display: table-cell;
        list-style: none;
        padding-left: 15px;
        height: 30px;
        vertical-align: middle;
        display: flex;
    }
    .review-course_tab-lessons{
        padding: 0
    }
    a .review-course_tab-lesson{
        color: gray;
    }
    a .review-course_tab-lesson .link-course:hover{
        color: orange;
    }
    .tab-info{
        display: none;
        padding: 15px 0 60px 0;
    }
    .tab-info.active{
        display: block;
    }
    .review-course_title{
        color: #666;
        font-size: 26px;
        font-weight: 400;
        letter-spacing: 0;
        text-transform: capitalize;
        border-bottom: 1px solid #c5c5c5;
        padding-bottom: 15px;
    }
    .review-course_tab-lesson a,
    .review-course_tab-lesson p{
        color: #333;
        font-size: 16px;
        font-weight: 600;
        margin-left: 20px;
    }
    .review-course_tab-lesson a:hover{
        color: orange;
    }
    .review-course_tab-lesson i.fa-file-o{
        color: orange;
        font-weight: 700;
    }
    .link-course{
        display: block;
        width: 680px;
    }
    a.btn-buy-course{
        text-align: center;
        padding-top: 15px;
        display: block;
        height: 35px;
        color: black;
    }
    .form-add-course-to-cart {
        display: none;
    }
    .form-add-course-to-cart.active {
       display: block;
    }
    .accessLevel{
        display: none;
    }
    .accessLevel.active{
        display: block;
    }
}