html, body, .window-wrap, #main, .home, .img-wrapper, .img-wrapper > div {
    height: 100%;
}

ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
}

.content-wrapper {
    /*height: calc(300vh - 229px);*/
}

.home > div:not(.wrapper-about) {
    height: 100vh;
}

.bg-transparent {
    background: var(--transparent) !important;
}

.position-fixed {
    position: fixed;
}

.position-absolute {
    position: absolute !important;
}

.wrapper-header ol:not(.user) a {
    color: var(--font-light-color) !important;
}

.wrapper-footer footer {
    max-width: 1700px !important;
}

@media (min-width: 768px) {
    .hidden {
        display: inline-block !important;
        visibility: visible !important;
    }
}

.mobile-menu {
    margin: 70px 0 -10px;
}

.global-header {
    position: absolute;
    z-index: 10;
}

.global-header {
    overflow: visible;
}

@media (max-width: 992px) {   
    .global-header .main-header {
        width: 100%;
    }
}

@media (min-width: 992px) {   
    .global-header .nav-item {
        display: block;
        margin: 0 !important;
    }
    .global-header .sign-in-btn {
        color: white !important;
        font-size: 1rem;
        padding: 10px 20px !important;
        margin-top: -10px;
        border-radius: 3px !important;
        text-decoration: none !important;
        border: unset !important;
        background-color: transparent !important;
        display: inline-block;
        font-weight: bold;
        font: normal 1.2rem/1.6rem "Open Sans","Helvetica Neue",Helvetica,Arial,sans-serif;
        letter-spacing: 1px;
        -webkit-font-smoothing: antialiased;
        transition: all 0.1s linear 0s;
    }
    .global-header .sign-in-btn:hover {
        color: #57068c !important;
        background: #fff !important;
    }
    .global-header button.btn-i18n:hover {
        color: #57068c !important;
        background: #fff !important;
    }

    .global-header .dropdown-user-menu > div {
        border-radius: 3px !important;
    }

    .global-header .dropdown-user-menu a {
        color: var(--homepage-i18n-font-color) !important;
	}

	.global-header .dropdown-user-menu a:hover {
        color: #57068c !important;
        background: var(--homepage-i18n-font-color) !important;
	}

    .global-header .nav-links div.main {
        margin-top: 15px;
    }
    /* Logged out Explore courses needs extra padding at parent div */
    .global-header .nav-links .main .nav-item {
        padding-top: 10px;
    }
    .global-header .nav-links .main .nav-item.nav-tab {
        padding-top: 0px;
    }

    /* Logged in Explore courses is inside nav-tab, logged out is inside nav-item with no class*/
    .global-header .nav-links .main .nav-item:not(.nav-tab) a, .global-header .nav-links .main .nav-tab a.tab-nav-link {
        color: var(--homepage-i18n-font-color) !important;
        padding: 10px 15px;
        border-radius: 3px !important;
    }

    .global-header .nav-links .main .nav-item:not(.nav-tab) a:hover, .global-header .nav-links .main .nav-tab a.tab-nav-link:hover {
        color: #57068c !important;
        background: var(--homepage-i18n-font-color) !important;
        border-bottom: none;
	}
}

.menu-title .username {
    color: white;
}

.header-global .wrapper-header {
    max-width: 1700px;
}

.global-header .nav-item-dropdown {
    color: white;
}


.no-border {
    border: none !important;
}

.no-shadow {
    box-shadow: none !important;
}

.homepage-visible {
    display: inline-block !important;
}

.homepage-hidden {
    display: none;
}

.homepage-visible-xs {
    display: inline-block !important;
    visibility: visible !important;
}

@media (min-width: 768px) {
    .homepage-visible-xs {
        display: none !important;
    }
}

.dropdown > span {
    color: var(--homepage-dropdown-button);
}

.dropdown-menu {
    background: var(--homepage-dropdown-menu-background-color) !important;

}

.dropdown-menu a {
    color: var(--homepage-dropdown-menu-font-color) !important;
}

.dropdown-menu a:hover {
    color: var(--homepage-dropdown-menu-action-color) !important;
}

.btn-i18n {
    color: var(--homepage-i18n-font-color) !important;
}

.banner-wrapper {
    position: relative;
    background: var(--primary-color);
}

.jump-wrapper {
    position: absolute;
    bottom: 0px;
    left: 50%;
    transform: translateX(-50%);
}

.jump-angle {
    color: var(--font-light-color);
}

.jump-angle:hover {
    color: var(--font-light-color);
}

.banner-wrapper video {
    object-fit: cover;
    object-position: center center;
    height: 100%;
    width: 100%;
}

@supports (object-fit: cover) and (-ms-ime-align:auto) {
    .banner-wrapper video {
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
    }

    @media (min-aspect-ratio: 16/9) {
        .banner-wrapper video {
            width: 100% !important;
            height: auto !important; /* actually taller than viewport */
        }
    }
    @media (max-aspect-ratio: 16/9) {
        .banner-wrapper video {
            width: auto !important; /* actually wider than viewport */
            height: 100% !important;
        }
    }
    .banner-wrapper {
        overflow: hidden;
    }
}

.title-wrapper {
    text-align: center;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 100%;
    display: flex;
    justify-content: center;

}

.left > img {
    width: 22vw;
}

.title-wrapper > .right {
	text-align: left;
    display: inline-flex;
    justify-content: left;
	flex-direction: column;
    margin-top: 2vw;
}

.title-wrapper > .right > span {
    /*font-weight: lighter;*/
    /*font-size: 84px;*/
    line-height: normal;
    color: var(--banner-title-font);
    margin: 0;
}

.title-wrapper > .right > span.niuke {
    font-size: 10vw;
    font-weight: bold;
    line-height: 100%;
}

.title-wrapper > .right > span.opencourse {
    font-size: 8vw;
    font-weight: bold;

}

.title-wrapper > .right > span.nyushanghai {
    font-size: 3vw;
    text-align: right;
    display: inline-flex;
    justify-content: flex-end;
    font-weight: lighter;
}

@media (min-width: 768px) {
    .left > img {
        width: 11vw;
    }

	.title-wrapper > .right {
		margin-top: 1vw;
	}	

    .title-wrapper > .right > span.niuke {
        font-size: 5vw;
        line-height: 100%;
        font-weight: bold;
    }

    .title-wrapper > .right > span.opencourse {
        font-size: 4vw;
    }

    .title-wrapper > .right > span.nyushanghai {
        font-size: 2vw;
        text-align: right;
        display: inline-flex;
        justify-content: flex-end;
        font-weight: lighter;
    }
}

.title-wrapper > .right > span > span {
    display: block;
    margin-right: 0.3em;
    float: left;
}

.title-wrapper > .right > span > span span {
    opacity: 0;
    backface-visibility: visible;
    transition-property: all;
    transition-duration: 660ms;
    transition-timing-function: ease-in-out;
    transform-origin: 50% 50% 0px;
    transform: perspective(1050px) rotateY(0deg) scale(0.5);
    -webkit-transition-property: all;
    -webkit-transition-duration: 660ms;
    -webkit-transition-timing-function: ease-in-out;
    -webkit-transform-origin: 50% 50% 0px;
    -webkit-transform: perspective(1050px) rotateY(0deg) scale(0.5);
    display: inline-block;
}


.banner-img {
    overflow: hidden;
    width: 100%;
    background-repeat: no-repeat;
    background-position: center center;
    background-size: cover;
}

.homepage-hide {
    display: none !important;
}

.course-search form{
    display: flex;
} 

.course-search {
    display: none;
    padding: 10px 25px;
}

.course-search.active {
    display: block;
}

.course-search form label {
    flex-grow: 1;
    margin-bottom: 0;
}

.course-search form input {
    border-radius: 3px;
    height: 33px;
}

@media (max-width: 768px) {
    .course-search {
        display: block;
        background: white;
    }
    .course-search form button {
        display: none;
    }
}

.course-nav .tabs li a {
    /*padding: 10px 15px 10px 15px;*/
    display: block;
    text-align: center;
    text-decoration: none;
    border-bottom: 4px solid transparent;
    color: var(--course-nav-font-color);
    /*height: 25px;*/
    min-width: 150px;
    font-size: 18px;
    font-weight: 400;
    height: calc(100% - 4px);
    line-height: 51px;
    cursor: pointer;
}

.course-nav .tabs li {
    display: inline-block;
    list-style: none;
    height: 51px;
}

.course-nav .tabs li a.active, .course-nav .tabs li a:hover {
    color: var(--course-nav-action-color) !important;
    border-bottom-color: var(--course-nav-action-color) !important;
}

.course-slider {
    overflow: hidden;
    width: 100%;
    height: 100%;
}

.courses-content {
    background-color: var(--course-background-color);
    height: calc(100% - (51px));
    background-image: url(https://cdn-minicourse.nyushmedia.com/ui/courses_background.webp), url(https://cdn-minicourse.nyushmedia.com/ui/courses_background.jpg);
    background-repeat: no-repeat;
    background-size: cover;
}

@media (max-width: 768px) {
    .courses-content {
        background-image: none;
    }
}

.course-item {
    background: var(--primary-light-color);
}

.course-slider .box {
    background: rgba(246, 247, 248, 0);
    margin: auto;
    margin-top: 5%;
    overflow: hidden;
    border-radius: 2px 2px 0 0;
}

.course-slider .slide-wrap {
    position: relative;
    width: 100%
}

.course-slider .border {
    position: relative;
    top: 50%;
    transform: translateY(-50%);
    height: 100%;
}

.course-slider .slide {
    position: relative;
    top: 50%;
    transform: translateY(-50%);
    -webkit-transition: left .5s;
    transition: left .5s;
    left: 0;
    width: 100%;
    height: 100%;
}

.course-slider .slide-active-r {
    left: -30px
}

.course-slider .slide-active-l {
    left: 30px
}

.course-slider .shift {
    position: absolute;
    z-index: 2000;
    background-color: var(--menu-transparent);
    height: 100%;
    -webkit-transition: opacity .5s, width .1s, margin .5s;
    transition: opacity .5s, width .1s, margin .5s;
    width: 0;
    opacity: 0
}

.course-slider .shift-active {
    width: 66px;
    opacity: .65
}

.course-slider .left {
    left: -33px
}

.course-slider .right {
    right: -33px
}

.course-slider i.shift {
    top: 50%;
    transform: translateY(-50%);
    background-color: transparent;
    color: var(--font-light-color);
    height: 45px;
    cursor: pointer;

}

.course-slider i.left {
    background-position: 0 0
}

.course-slider i.right {
    background-position: -28px 0
}

.course-slider .i-active {
    width: 28px;
    opacity: 1;
    margin: 0 36px
}

.course-slider .i-active-move {
    margin: 0 18px
}

.course-slider ul {
    left: -41px !important;
    display: flex;
    position: relative;
    white-space: nowrap;
    font-size: 0;
    transition: transform .5s ease-out;
    height: 100%;
}

.course-slider li {
    display: inline-block;
    background-color: var(--primary-color);
    position: relative;
}

input.search-input {
    width: 100%;
    border-radius: 50px;
    box-shadow: none;
    height: 28px;
    padding: 10px 20px;
    font-family: var(--roboto-font-family);
}

#search_form {
    margin-top: 5px;
}

#search_form > label > a {
    position: absolute;
    right: 14px;
    top: -2px;
    color: var(--font-secondary-light-color);
}

#search_form > label > a:hover {
    color: var(--secondary-color);
}

#search_form > label {
    position: relative;
}

.xs-search-btn > a {
    color: var(--font-light-color);
    margin: 0 6px;
}

.xs-search-btn > a:hover, .xs-search-btn > a:focus, .font-size-18px:hover {
    text-decoration: none;
}

.slide li:hover .course-title, .slide li:hover .course-learn-more {
    transform: translate(0);
    opacity: 1;
}

.grid *, .course-slider-xs * {
    font-family: var(--roboto-font-family) !important;
}

.course-nav {
    background: var(--course-nav-background-color);
}

/* course nav xs */
.accordion * {
    margin: 0;
    padding: 0;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box
}

.accordion {
    width: 100%;
}

.accordion .link {
    cursor: pointer;
    display: block;
    padding: 12px 15px 12px 42px;
    color: var(--course-nav-font-color);
    font-size: 18px;
    font-weight: 400;
    line-height: normal;
    position: relative;
    -webkit-transition: all .4s ease;
    -o-transition: all .4s ease;
    transition: all .4s ease
}

.accordion .link:hover, .accordion .link:hover i {
    color: var(--course-nav-action-color);
}

.accordion li:last-child .link {
    border-bottom: 0
}

.accordion li i {
    position: absolute;
    top: 16px;
    left: 12px;
    font-size: 18px;
    /*color: #595959;*/
    color: var(--course-nav-font-color);
    -webkit-transition: all .4s ease;
    -o-transition: all .4s ease;
    transition: all .4s ease
}

.accordion li i.fa-chevron-down {
    right: 12px;
    left: auto;
    font-size: 16px
}

.accordion li.open .link {
    color: var(--course-nav-action-color);

}

.accordion li.open i {
    color: var(--course-nav-action-color);
}

.accordion li.open i.fa-chevron-down {
    -webkit-transform: rotate(180deg);
    -ms-transform: rotate(180deg);
    -o-transform: rotate(180deg);
    transform: rotate(180deg)
}

.submenu {
    display: none;
    font-size: 18px;
    font-weight: 400;
    line-height: normal;
}

.submenu li {
    border-bottom: 4px solid transparent;
}

.submenu li:hover {
    border-bottom: 4px solid var(--course-nav-action-color)
}

.submenu a {
    display: block;
    text-decoration: none;
    color: var(--course-nav-font-color);
    padding: 12px;
    padding-left: 42px;
    -webkit-transition: all .25s ease;
    -o-transition: all .25s ease;
    transition: all .25s ease
}

.submenu a:hover {
    color: var(--course-nav-action-color);
}

.course-slider-xs ul img {
    width: 100%;
    height: 300px;
}

.course-slider-xs ul li {
    position: relative;
}

.course-slider-xs ul li > div {
    height: 300px;
    background: var(--course-item-background-color);
}

.course-slider-xs a {
    text-decoration: none;
}

.course-title-xs {
    width: 70%;
    position: absolute;
    top: 70px;
    left: 35px;
}

h2.course-title-xs, h2.course-title-new {
    color: var(--course-title-font-color);
    font-size: 36px;
    font-weight: inherit;
    line-height: normal;
}

.homepage-hidden-xs {
    display: flex !important;
}

tr.homepage-hidden-xs {
    display: table-row !important;
}

th.homepage-hidden-xs,
td.homepage-hidden-xs {
    display: table-cell !important;
}

@media (max-width: 767px) {
    .homepage-hidden-xs {
        display: none !important;
    }

    tr.homepage-hidden-xs {
        display: none !important;
    }

    th.homepage-hidden-xs,
    td.homepage-hidden-xs {
        display: none !important;
    }
}

@media (min-width: 768px) and (max-width: 991px) {
    .homepage-hidden-xs.hidden-sm {
        display: none !important;
    }

    tr.homepage-hidden-xs.hidden-sm {
        display: none !important;
    }

    th.homepage-hidden-xs.hidden-sm,
    td.homepage-hidden-xs.hidden-sm {
        display: none !important;
    }
}

@media (min-width: 992px) and (max-width: 1199px) {
    .homepage-hidden-xs.hidden-md {
        display: none !important;
    }

    tr.homepage-hidden-xs.hidden-md {
        display: none !important;
    }

    th.homepage-hidden-xs.hidden-md,
    td.homepage-hidden-xs.hidden-md {
        display: none !important;
    }
}

@media (min-width: 1200px) {
    .homepage-hidden-xs.hidden-lg {
        display: none !important;
    }

    tr.homepage-hidden-xs.hidden-lg {
        display: none !important;
    }

    th.homepage-hidden-xs.hidden-lg,
    td.homepage-hidden-xs.hidden-lg {
        display: none !important;
    }
}

/*course grid*/
.line {
    height: 2px;
    width: 80px;
    content: '';
    position: absolute;
    left: .06em;
    background: var(--course-line-color);
    top: -1.25rem;
}

.grid {
    position: relative;
    clear: both;
    margin: 0 auto;
    padding: 1em 0 4em;
    width: 370px;
    height: 100%;
    list-style: none;
    text-align: center
}

.grid figure {
    position: relative;
    float: left;
    overflow: hidden;
    width: 370px;
    height: 100%;
    text-align: center;
    cursor: pointer
}

.grid figure img {
    position: relative;
    display: block;
    height: 100%;
    width: 370px;
    opacity: .8;

    object-fit: cover;
    object-position: center center;
}

.grid figure figcaption {
    padding: 2em;
    text-transform: none;
    font-size: initial;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden
}

.grid figure figcaption::before, .grid figure figcaption::after {
    pointer-events: none
}

.grid figure figcaption, .grid figure figcaption > a {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%
}

.grid figure figcaption > a {
    z-index: 1000;
    text-indent: 200%;
    font-size: 0;
    opacity: 0
}

.grid figure h2 {
    font-weight: 300;
    letter-spacing: normal;
    width: 300px;
    white-space: normal;
}

.grid figure h2 span {
    font-weight: inherit;
}

.grid figure h2, .grid figure p {
    margin: 115px 0
}

.grid figure p {
    letter-spacing: 1px;
    font-size: 68.5%
}

figure.effect-julia {
    background: var(--course-item-background-color)
}

figure.effect-julia img {
    max-width: none;
    height: 100%;
    -webkit-transition: opacity 1s, -webkit-transform 1s;
    transition: opacity 1s, transform 1s;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden
}

figure.effect-julia figcaption {
    text-align: left
}

figure.effect-julia figcaption > div {
    position: absolute;
    bottom: 38%;
}

figure.effect-julia h2 {
    font-size: 36px;
    line-height: normal;
    font-weight: inherit;
    position: relative;
    /*padding: .5em 0;*/
    text-align: left;
    color: var(--course-title-font-color);
}

figure.effect-julia p {
    /*font-weight: 500;*/
    /*font-size: 24px;*/
    /*line-height: normal;*/
    /**/
    /*display: inline-block;*/
    /*width: 250px;*/
    /*margin: 0 0 .25em;*/
    /*padding: .4em 1em;*/
    /*background: var(--course-learn-more-background-color);*/
    /*color: var(--course-learn-more-font-color);*/
    /*text-transform: none;*/
    /*font-size: 75%;*/
    /*-webkit-transition: opacity .35s, -webkit-transform .35s;*/
    /*transition: opacity .35s, transform .35s;*/
    /*-webkit-transform: translate3d(-360px, 0, 0);*/
    /*transform: translate3d(-360px, 0, 0)*/


    text-align: center;
    border-radius: 5px;
    font-weight: 500;
    font-size: 1.1em;
    line-height: normal;

    display: inline-block;
    width: 255px;
    margin: 0 2px;
    padding: .4em 1em;
    /* background: var(--course-learn-more-background-color);
    color: var(--course-learn-more-font-color); */
    background: rgba(255, 255, 255, 0.3);
    color: #f1f1f1;
    text-transform: none;
    -webkit-transition: opacity .35s, -webkit-transform .35s;
    transition: opacity .35s, transform .35s;
    -webkit-transform: translate3d(-360px, 0, 0);
    transform: translate3d(-360px, 0, 0)
}

figure.effect-julia p:first-child {
    -webkit-transition-delay: .15s;
    transition-delay: .15s
}

figure.effect-julia p:nth-of-type(2) {
    -webkit-transition-delay: .1s;
    transition-delay: .1s
}

figure.effect-julia p:nth-of-type(3) {
    -webkit-transition-delay: .05s;
    transition-delay: .05s
}

figure.effect-julia:hover p:first-child {
    -webkit-transition-delay: 0s;
    transition-delay: 0s
}

figure.effect-julia:hover p:nth-of-type(2) {
    -webkit-transition-delay: .05s;
    transition-delay: .05s
}

figure.effect-julia:hover p:nth-of-type(3) {
    -webkit-transition-delay: .1s;
    transition-delay: .1s
}

figure.effect-julia:hover img {
    opacity: .4;
    -webkit-transform: scale3d(1.1, 1.1, 1);
    transform: scale3d(1.1, 1.1, 1)
}

figure.effect-julia:hover p {
    opacity: 1;
    -webkit-transform: translate3d(0, 0, 0);
    transform: translate3d(0, 0, 0)
}

/*lexi start*/
figure.effect-lexi {
    background: -webkit-linear-gradient(-45deg, #000 0%, #fff 100%);
    background: linear-gradient(-45deg, #000 0%, #fff 100%)
}

figure.effect-lexi img {
    margin: -10px 0 0 -10px;
    max-width: none;
    width: -webkit-calc(100% + 10px);
    width: calc(100% + 10px);
    opacity: .9;
    -webkit-transition: opacity .35s, -webkit-transform .35s;
    transition: opacity .35s, transform .35s;
    -webkit-transform: translate3d(10px, 10px, 0);
    transform: translate3d(10px, 10px, 0);
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden
}

figure.effect-lexi figcaption::before, figure.effect-lexi p {
    -webkit-transition: opacity .35s, -webkit-transform .35s;
    transition: opacity .35s, transform .35s
}

figure.effect-lexi figcaption::before {
    position: absolute;
    right: -100px;
    bottom: -100px;
    width: 350px;
    height: 350px;
    border: 2px solid #fff;
    border-radius: 50%;
    box-shadow: 0 0 0 900px rgba(255, 255, 255, 0.2);
    content: '';
    opacity: 0;
    -webkit-transform: scale3d(.5, .5, 1);
    transform: scale3d(.5, .5, 1);
    -webkit-transform-origin: 50% 50%;
    transform-origin: 50% 50%
}

figure.effect-lexi:hover img {
    opacity: .6;
    -webkit-transform: translate3d(0, 0, 0);
    transform: translate3d(0, 0, 0)
}

figure.effect-lexi h2 {
    text-align: left;
    font-size: 36px;
    line-height: normal;
    font-weight: initial;
    color: var(--course-title-font-color);
    -webkit-transition: -webkit-transform .35s;
    transition: transform .35s;
    -webkit-transform: translate3d(5px, 5px, 0);
    transform: translate3d(5px, 5px, 0);
    margin-top: 109px;
}

figure.effect-lexi p {
    font-weight: 500;
    font-size: 24px;
    line-height: normal;

    position: absolute;
    right: 46px;
    bottom: -17px;
    padding: 0 1.5em 1.5em 0;
    width: 140px;
    text-align: right;
    opacity: 0;
    -webkit-transform: translate3d(20px, 20px, 0);
    transform: translate3d(20px, 20px, 0)
}

figure.effect-lexi:hover figcaption::before {
    opacity: 1;
    -webkit-transform: scale3d(1, 1, 1);
    transform: scale3d(1, 1, 1)
}

figure.effect-lexi:hover h2, figure.effect-lexi:hover p {
    opacity: 1;
    -webkit-transform: translate3d(0, 0, 0);
    transform: translate3d(0, 0, 0)
}

/*lexi end*/

/*peng start[course slide style for not-xs]*/

.ul-active {

}

.ul-xs-active {
    display: block !important;
}

@media (max-width: 767px) {
    .ul-active {
        display: none !important;
    }
}

/*peng end*/

.video-filter {

    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    background-color: rgba(87, 6, 140, 0.35);

}

.wrapper-header .dropdown {
    outline: 0;
}

.wrapper-header .btn-i18n {
    outline: 0;
}

.jump-wrapper .jump-angle {
    animation: jump .35s ease-in alternate infinite;
}

@keyframes jump {
    0% {
        -webkit-transform: translateY(0);
        transform: translateY(0);
    }
    100% {
        -webkit-transform: translateY(15px);
        transform: translateY(15px);
    }
}

@keyframes horizontal_jump {
    0% {
        -webkit-transform: translateY(0);
        transform: translateY(0);
    }
    100% {
        -webkit-transform: translateY(15px);
        transform: translateX(15px);
    }
}

@media (min-width: 768px) {
    .header-global .wrapper-header {
        margin: 0 4em;
    }

    .footer-custom > div {
        margin: 0;
    }
}

@media (max-width: 768px) {
    .wrapper-header .user {
        min-width: 50px !important;
    }

    .wrapper-about-xs {
        height: 570px;
        width: 100%;
        background: url(https://cdn-minicourse.nyushmedia.com/ui/qrcode_background.webp), url(https://cdn-minicourse.nyushmedia.com/ui/qrcode_background.jpg);
        background-size: cover;
        background-repeat: no-repeat;
        background-position: bottom center;
    }

    .wrapper-footer {
        padding: 0;
    }

    .slogan {
        height: unset !important;
        font-size: 2em !important;
    }

    .slogan > span {
        white-space: unset !important;
    }

    .way-to {
        padding-top: 30px !important;
        font-size: 2em !important;
    }

    .way-ar-code-xs {
        /*margin: 0 1em;*/
        /*color: #000;*/
        color: var(--secondary-color);
        font-size: inherit;
        background: #fff;
        height: 100%;
        padding: 6px 9px 0;
        border-radius: 5px;
    }

    .way-ar-code-xs:active, .way-ar-code-xs:focus, .way-ar-code-xs:hover {
        background: #fff !important;
    }

    .way-ar-code-xs .qr-code {
        font-size: inherit;
    }

    .qr-code-img-xs {
        border-radius: 5px;
        width: 210px;
        float: right;
        height: 210px;
        font-size: 1.5em;
        margin-right: 3em;
        margin-top: -36px;
        background: url(https://cdn-minicourse.nyushmedia.com/ui/qrcode.webp), url(https://cdn-minicourse.nyushmedia.com/ui/qrcode.jpeg);
        background-size: contain;
        background-repeat: no-repeat;
    }

}

.fa-horizontal-jump {
    animation: horizontal_jump .35s ease-in alternate infinite;
}

.wrapper-header .nav-courseware {
    min-width: 60px;
}

.wrapper-header .user {
    min-width: 130px;
}

.wrapper-about {
    position: relative;
    height: calc(100vh - 229px);
    width: 100%;
    min-height: 500px;
    background-image: url(https://cdn-minicourse.nyushmedia.com/ui/qrcode_background.webp), url(https://cdn-minicourse.nyushmedia.com/ui/qrcode_background.jpg);
    background-size: cover;
    background-repeat: no-repeat;
    background-position: bottom center;
}

.third-filter {
    width: 100%;
    height: 100%;
    background: var(--transparent);
    float: left;
}

.about-centent {
    display: flex;
    justify-content: space-between;
    flex-wrap: nowrap;
    flex-direction: row;
    width: 753px;
    height: 230px;
    left: 50%;
    top: 50%;
    transform: translateX(-50%) translateY(-50%);

    position: absolute;
    /*margin-top: 46vh;*/
    /*width: 100%;*/
    /*height: 40%;*/
}

.about-centent > div {
    flex: 1;
}

.slogan {
    font-size: 2.5em;
    line-height: 50px;
    font-weight: bold;
    color: #fff;
    text-align: center;
    letter-spacing: 3px;
}

.sub-slogan {
    font-size: 1.7em;
    color: #fff;
    text-align: center;
    white-space: nowrap;
    margin-top: 22px;
}

.slogan > span {
    white-space: nowrap;
}

.way-to {
    width: 100%;
    text-align: center;
    font-size: 2em;
    padding: 50px 0 0 0;
}

.way-login {
    font-size: inherit;
    cursor: pointer;
    border: 1px solid #9E9E9E;
    background: #9E9E9E;
    border-radius: 3px;
    padding: 10px 20px;
    font-weight: bold;
}

.way-login:hover{
    background: #fff!important;
    border: 1px solid var(--secondary-color);
}
.way-login:hover>a{
    color: var(--secondary-color);
}

.way-login span {
    font-size: .8em;
    display: inline-block;
    transform: translateY(-12%);
}

.way-login .fa-sign-in {
    padding-right: 35px;
    font-size: inherit;
}

.way-login a {
    color: #fff;
    background: none;
    text-decoration: none;
    text-transform: none;
    text-align: center;
}

.way-ar-code {
    margin: 0 10px;
    /*color: #000;*/
    color: var(--secondary-color);
    font-size: inherit;
    background: #fff;
    height: 100%;
    padding: 6px 9px 0;
    border-radius: 5px;
}

.hidden-xs .our-qr-code:after {
    /*margin-left: 20px;*/
    /*margin-top: -6px;*/

    margin-left: 46px;
    margin-top: 14px;
}

.about-content-xs {
    display: flex;
    justify-content: center;
    flex-flow: column;
    padding-top: 50px;
}

.about-content-xs .our-qr-code:after {
    transform: translateX(-50%);
    left: 50%;
    margin-top: 60px;
}

.our-qr-code:after {
    content: '';
    border-radius: 5px;
    width: 150px;
    position: absolute;
    height: 150px;
    float: right;
    background: url(https://cdn-minicourse.nyushmedia.com/ui/qrcode.webp), url(https://cdn-minicourse.nyushmedia.com/ui/qrcode.jpeg);
    background-size: contain;
    background-repeat: no-repeat;
}

.way-ar-code:active, .way-ar-code:focus, .way-ar-code:hover {
    background: #fff !important;
}

.way-ar-code .qr-code {
    font-size: inherit;
}

.qr-code-img {
    border-radius: 5px;
    width: 210px;
    float: right;
    height: 210px;
    font-size: 1.5em;
    /*margin-right: 5em;*/
    /*margin-top: -36px;*/
    margin-right: 21.8em;
    margin-top: -60px;
    background: url(https://cdn-minicourse.nyushmedia.com/ui/qrcode.webp), url(https://cdn-minicourse.nyushmedia.com/ui/qrcode.jpeg);
    background-size: contain;
    background-repeat: no-repeat;
}

.course-slider li:not(.first) {
    transform: scaleX(1);
    background: none;
    /*animation: flip 1.5s ease-in-out alternate forwards;*/
}

@keyframes flip {
    0% {
        -webkit-transform: scaleX(1);
        transform: scaleX(1);
    }
    50% {
        -webkit-transform: scaleX(-1);;
        transform: scaleX(-1);;
    }
    100% {
        -webkit-transform: scaleX(1);
        transform: scaleX(1);
    }
}