/* abuot */
.container-fluid {
    padding-right: 0 !important;
    padding-left: 0 !important;
}

.box-img-about {
    height: 1200px;
    background: url('../img/autou-p.png') no-repeat center center;
    background-size: 100%;
    transform: skewY(9deg);
    margin-top: -290px;
}

.box-img-online_course {
    height: 1200px;
    background: url('../img/online_course.png') no-repeat center center;
    background-size: 100%;
    transform: skewY(9deg);
    margin-top: -290px;
}

.about_box {
    margin-top: -210px;
    display: none;
}

.abuot_logo {
    width: 100%;
    height: 520px;
    transform: skewY(-9deg);
    overflow: hidden;
    position: relative;
    padding-left: 0 !important;
    padding-right: 0 !important;
}

.abuot_logo_hang_tan {
    width: 100%;
    height: 500px;
    transform: skewY(-9deg);
    overflow: hidden;
    position: relative;
    padding-left: 0 !important;
    padding-right: 0 !important;
    margin-top: 60px;
}

.abuot_logo_tan {
    width: 100%;
    height: 510px;
    transform: skewY(-9deg);
    overflow: hidden;
    position: relative;
    padding-left: 0 !important;
    padding-right: 0 !important;
}

.context_class {
    background-color: #fff;
    padding: 0;
    width: 100%;
    height: 350px;
    transform: skewY(-9deg);
    overflow: hidden;
    position: relative;
}

.abuot_logo_box {
    position: absolute;
    top: 122px;
    left: 50%;
    transform: skewY(9deg);
    font-size: 16px;
    font-weight: bold;
    margin-left: -600px;
}

.abuot_logo_txt1 {
    width: 936px;
    position: absolute;
    top: 143px;
    left: 42%;
    transform: skewY(9deg);
    font-size: 24px;
    font-weight: 400;
    margin-left: -365px;
}

.abuot_logo_txt_online_course {
    width: 550px;
    position: absolute;
    top: 143px;
    left: 50%;
    transform: skewY(9deg);
    font-size: 16px;
    font-weight: 400;
    margin-left: -265px;
    text-align: center;
}

.abuot_logo img {
    width: 100%;
    height: auto;
    transform: skewY(9deg);
    margin-top: -200px;
}

.abuot_nav {
    margin-top: -10px;
    height: 600px;
    transform: skewY(-9deg);
    background-color: #fff;
}

.abuot_nav_box {
    height: 420px;
}

.abuot_nav_xbox {
    height: 100%;
    padding-top: 90px;
    padding-left: 30px;
    padding-right: 30px;
}

.abuot_nav_xbox_tp {
    width: 150px;
    height: 140px;
    margin: 0 auto;
    margin-bottom: 10px;
    transform: skewY(9deg);
}

.abuot_nav_wenz {
    transform: skewY(9deg);
    text-align: center;
    font-size: 16px;
    margin-bottom: 40px;
    font-weight: bold;
}

.abuot_nav_txt {
    transform: skewY(9deg);
    margin: 0 auto;
}

.abuot_nav_xbox_tp:nth-child(2) {
    display: none;
}

.abuot_nav_xbox:hover .abuot_nav_wenz {
    color: #0f54a2;
}

.abuot_nav_xbox:hover .abuot_nav_txt {
    color: #0f54a2;
}

.abuot_nav_xbox:hover .abuot_nav_xbox_tp:nth-child(2) {
    display: block;
}

.abuot_nav_xbox:hover .abuot_nav_xbox_tp:nth-child(1) {
    display: none;
}

.abuot_nav_xbox:hover {
    box-shadow: 5px 5px 10px #e1ecfa;
}

.abuot_logo_txt {
    color: #1d428a !important;
}

@media (max-width: 1300px) {
    .abuot_logo_tan {
        height: 490px;
    }
}