#register {
    background-image: linear-gradient(204deg, #EEE, #EEE 33%, #EEE 56%, #EEE), linear-gradient(210deg, #EEE, #EEE 44%, #EEE), linear-gradient(180deg, #EEE, #EEE);
}

#html5book {
    background-image: linear-gradient(204deg, #5b84db, #538AD0 33%, #3880c0 56%, #226aab), linear-gradient(210deg, #5ca6ea, #4f8cc2 44%, #2d608f), linear-gradient(180deg, #4185b8, #4185b8);
}

.case {
    /* box-shadow: 0 0 10px #888; */
}

.description {
    color: #FFF
}

#html5book .title {
    margin: 20px 0;
    font-size: 25px;
}

#html5book .subtitle {
    font-size: 18px;
}

.title-description {
    color: #FFF;
}

.how-to-create strong {
    color: #f5a036
}

.container .bookGroups {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 13px;
    background: white;
    color: #333;
    border: #ccc solid 1px;
    text-align: center;
    cursor: pointer;
    transition: all 0.5s;
    margin: 3px 0;
}

.bookGroups:hover{color:red}
.bookGroupsActive {
    background: black !important;
    color: white !important;
    border: #0f0f0f solid 1px !important;
}

.allBookGroups {
    padding: 20px 0px;
    text-align: center;
    white-space: nowrap;
    width: calc(100% - 20px);
    overflow-x: auto;
    margin: auto;
}

.allBookGroups span {
    flex: 1;
    padding: 0px 20px 0px 0px;
}

.bookshelf {
    position: relative;
}

.bookLoading {
    width: 100%;
    height: 110%;
    background: white;
    position: absolute;
    z-index: 99;
    left: 0px;
}

@media ( min-width: 1200px) {
    #home-img {
        width: 100%;
        object-fit: cover;
        max-height: 250px;
        overflow: hidden;
    }
    #main_title {
        font-size: 36px;
        font-weight: bold;
    }

    .subtitle {
        width: 70%
    }

    .subtitle {
        width: 70%
    }

    #feature {
        margin-top: 150px
    }

    #flip {
        width: 500px;
        margin-top: 30px;
    }
    #flip-icon{
        position:absolute;top:50%;left:50%;
    }
    .title-description {
        font-size: 30px;
    }

    .card .cover {
        width: 147px;
        height: 200px;
    }

    .brands {
        /*padding-top: 30px;*/
        /*padding-bottom: 30px;*/
    }

    .brands span {
        font-size: 25px;
        line-height: 120px;
    }
    .brands .mini{
        font-size: 20px;
    }


    .brands img {
        width: 80%;
    }

    .how-to-create > div {
        height: 100%;
        position: relative;
    }

    .how-to-create {
        height: 150px;
    }

    .title-description {
        padding: 30px 0 20px 0;
    }

    .how-to-create {
        margin: 20px 0;
    }

    .how-to-create > div {
        font-size: 16px;
        display: table-cell;
        vertical-align: middle;
    }

    .how-to-create strong {
        padding-right: 10px;
        font-size: 18px;
    }

    .how-to-create img {
        height: 120px;
        margin-top: 25px;
    }

    #feature .col-md-4 {
        /*height: 150px;*/
        height: 380px;
    }

    #feature img {
        width: 100%;
        height: 200px;
       object-fit: cover;
    }


    #highlight {
        font-size: 35px;
        top: 100px;
        left: 100px
    }

    #highlightDescription {
        font-size: 20px;
        top: 170px;
        left: 100px;
        text-align: left;
        font-weight: 300;
    }

    #flipbook {
        width: 350px;
        max-height: 240px;
    }

    .case {
        height: 150px;
    }

    .description {
        font-size: 16px;
    }
    #company_slide{
        margin-left:100px;
    }
}

@media ( min-width: 992px) and (max-width: 1200px) {
    #home-img {
        width: 100%;
        object-fit: cover;
        max-height: 200px;
        overflow: hidden;
    }
    #main_title {
        font-size: 32px;
        font-weight: bold;
    }

    .subtitle {
        width: 70%
    }

    #feature {
        margin-top: 150px
    }

    #flip {
        width: 500px;
        margin-top: 50px;
    }
    #flip-icon{
        position:absolute;top:50%;left:50%;
    }
    .title-description {
        font-size: 30px;
    }

    .brands {
        height: 120px;

    }

    .brands span {
        font-size: 25px;
        line-height: 120px ;
    }
    .brands .mini{
        font-size: 20px;
    }

    .brands img {
        width: 100%;
        height: 90px;
    }

    .how-to-create > div {
        height: 100%;
        position: relative;
    }

    .how-to-create {
        height: 150px;
    }

    .title-description {
        padding: 30px 0 20px 0;
    }

    .how-to-create strong {
        padding-right: 10px;
        font-size: 18px;
    }

    .how-to-create img {
        height: 120px;
        margin-top: 25px;
    }

    .how-to-create {
        margin: 20px 0;
    }

    #feature .col-md-4 {
        /*height: 150px;*/
        height: 380px;
    }

    #feature img {
        width: 100%;
        height: 200px;
        object-fit: cover;
    }

    #highlight {
        font-size: 30px;
        top: 80px;
        left: 80px
    }

    #highlightDescription {
        font-size: 20px;
        top: 170px;
        left: 80px;
        text-align: left;
        font-weight: 300;
    }

    #flipbook {
        width: 300px;
        max-height: 210px;
    }

    .case {
        height: 150px;
    }

    .description {
        font-size: 16px;
    }
    #company_slide{
        margin-left:100px;
    }
}

@media ( min-width: 768px) and (max-width: 992px) {
    #home-img {
        width: 100%;
        object-fit: cover;
        max-height: 200px;
        overflow: hidden;
    }
    #main_title {
        font-size: 32px;
        font-weight: bold;
    }

    .subtitle {
        width: 70%
    }

    .subtitle {
        width: 80%
    }

    #feature {
        margin-top: 150px
    }

    #flip {
        width: 450px;
        margin-top: 60px;
    }
    #flip-icon{
        position:absolute;top:60%;left:50%;
    }
    .title-description {
        font-size: 25px;
    }

    .brands {
        margin-top: 20px;
        margin-bottom: 20px;
    }

    .brands img {
        width: 100%
    }

    .brands span {
        font-size: 20px;
        margin: 10px 0;
    }
    .brands .mini{
        font-size: 16px;
    }

    .how-to-create > div {
        height: 100%;
        position: relative;
    }

    .how-to-create {
        height: 150px;
    }

    .title-description {
        padding: 10px 0 20px 0;
    }

    .how-to-create strong {
        padding-right: 10px;
        font-size: 18px;
    }

    .how-to-create img {
        height: 120px;
        margin-top: 25px;
    }

    .how-to-create {
        margin: 20px 0;
    }

    #feature .col-md-4 {
        height: 120px;
    }

    #feature img {
       display: none;
    }

    #highlight {
        font-size: 35px;
        top: 30px;
        left: 50px
    }

    #highlightDescription {
        font-size: 20px;
        top: 170px;
        left: 50px;
        text-align: left;
        font-weight: 300;
    }

    #flipbook {
        width: 250px;
        max-height: 170px;
    }

    .case {
        height: 160px;
    }

    .description {
        font-size: 14px;
    }
    #company_slide{
        margin-left:100px;
    }

}

@media ( max-width: 767px) {
    #home-img {
        width: 100%;
        object-fit: cover;
        max-height: 150px;
        overflow: hidden;
    }
    #main_title {
        font-size: 23px;
        font-weight: bold;
    }

    .container .bookGroups {
        transform: translateX(0px);
        font-size: 10px;
    }

    .subtitle {
        width: 90%
    }

    #feature {
        margin-top: 80px
    }

    #flip {
        width: 90vw;
        max-width: 460px;
        margin-top: 80px;
    }
    #flip-icon{
        position:absolute;top:60%;left:50%;
    }

    h1 {
        font-size: 23px;
    }

    .title-description {
        font-size: 20px;
    }

    .brands {
        margin-top: 20px;
        margin-bottom: 20px;
    }

    .brands img {
        width: 100%
    }

    .brands span {
        font-size: 20px;
        margin: 10px 0;
    }
    .brands .mini{
        font-size: 16px;
    }

    .how-to-create-col {
        margin-bottom: 50px;
    }

    .how-to-create {
        height: 150px;
    }

    .title-description {
        padding: 10px 0 20px 0;
        font-size: 20px;
    }

    .how-to-create strong {
        padding-right: 10px;
        font-size: 16px;
    }

    .how-to-create img {
        height: 100px;
        margin-top: 20px;
    }

    .how-to-create {
        margin: 20px 0;
    }

    #feature .col-md-4 {
        height: 170px;
    }
    #feature img {
        display: none;
    }

    #highlight {
        font-size: 14px;
        top: 20px;
        left: 10px
    }

    #highlightDescription {
        font-size: 16px;
        top: 170px;
        left: 10px;
        text-align: left;
        font-weight: 300;
    }

    #flipbook {
        width: 100%;
    }

    .case {
        height: 130px;
    }

    .description {
        font-size: 14px;
    }
    #company_slide{
        margin-left:0
    }
}

.how-to-create > div span {
    position: absolute;
    top: 50%;
    margin-top: -36px;
    display: block;
    height: 72px;
}

.glyphicon-ok-sign {
    color: #4e6ef2;
    margin-right: 5px;
}

#feature h4 {
    color: #0a497d;
}

#feature p {
    color: #666;
}

#feature .glyphicon {
    color: #666;
    margin-right: 20px;
    font-size: 20px;
}

.left.carousel-control, .right.carousel-control {
    background-image: unset;
    background-image: none;
}

.carousel-indicators {
    bottom: 0px;
}

.card-group {
    position: reletive;
}

.card .cover {
    opacity: 0;
    width: 100%;
    height: 100%;
    position: absolute;
    left: 0;
    top: 0;

    background: #000;
    transition: all 2s;
}

.card:hover .cover {
    opacity: .6;
}

.card img:hover {
    /*鼠标上hover放大1.1倍*/
    transform: scale(1.1);
}

.card img{
    transition: transform 0.5s ease-in-out;
}

#flip:hover{
    transform: scale(1.1);
}
#flip{
    transition: transform 0.5s ease-in-out;
}
.how-to-create img{
    transition: transform 0.5s ease-in-out;
}

.how-to-create img:hover{
        transform: scale(1.1);
}
#home-img:hover{
    transform: scale(1.1);
}
#home-img{
    transition: transform 0.5s ease-in-out;
}
.functions{
    /*//向上升5个像素;*/
    transform: translateY(0);
    transition: transform 0.5s ease-in-out;
}

.functions:hover{
    /*transform: translateY(-5px);*/
    /*background: #EEEEEE;*/
}
.how-to-create{
    transition: transform 0.5s ease-in-out;
}
.how-to-create:hover{
    transform: scale(1.05);
}
.functions a:hover{
    cursor: pointer;
}
.container .bookGroups:hover{
   border: #999 solid 1px;
    box-shadow: 0 0 10px #ccc;
}
.col12:hover{
    transform: scale(1.05);
}
.col12{
    transition: transform 0.5s ease-in-out;
}


.card span {
    color: #AAA;
    text-align: center;
    margin-bottom: 20px;
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.text-background {
    background: linear-gradient(45deg, #020031, #6d3353);
    background-image: linear-gradient(45deg, rgb(2, 0, 49), rgb(109, 51, 83));
    background-position-x: initial;
    background-position-y: initial;
    background-size: initial;
    background-attachment: initial;
    background-origin: initial;
    background-clip: initial;
    background-color: initial;
    text-shadow: 0 1px 3px rgba(0, 0, 0, .4), 0 0 30px rgba(0, 0, 0, .075);
}

.text-background:after {
    content: "";
    display: block;
    position: absolute;
    top: 100px;
    right: 0;
    bottom: 0;
    left: 0;
    background: url(https://baige-static-1251142715.file.myqcloud.com/bs-docs-masthead-pattern.png) repeat 50%;
    opacity: .4;
}


.card span {
    margin-bottom: 5px;
}

.case {
    margin-top: 10px;
}



@media (max-width: 768px) {
    .card img {
        margin-bottom: -70px;
    }
    .shelf-row {

        padding: 25% 5%;
        background-size: 100%;

    }

    .card-bottom {
        position: relative;
        bottom: 35px;
        width: 100%;
    }

    .card span {
        margin-bottom: 5px;
        margin-top: 15px;
    }

    .shelf-row {
        padding: 5% 5%;
        width: unset;
    }

    .card {
        padding: 0 20px;
    }
}

@media (min-width: 768px) and (max-width: 992px) {
    .card img {
        margin-bottom: -20px;
    }
    .shelf-row {
        padding: 6% 5%;
        background-size: 100%;

    }

    .card-bottom {
        position: relative;
        bottom: 15px;

    }
}

@media (min-width: 992px) and (max-width: 1200px) {
    .card img {
        margin-bottom: 0px;
    }
    .shelf-row {
        padding: 2% 5% 41px 5%;
        background-size: 100%;
    }

    .card-bottom {
        position: relative;
        bottom: 15px;

    }

}

@media (min-width: 1200px) {
    .card img {
        margin-bottom: 30px;
    }
    .shelf-row {
        padding: 2% 5% 5% 5%;
        background-size: 100%;
    }



}

.allBookGroups::-webkit-scrollbar {
    /*滚动条整体样式*/
    width: 10px; /*高宽分别对应横竖滚动条的尺寸*/
    height: 10px;
}

.allBookGroups::-webkit-scrollbar-thumb {
    /*滚动条里面小方块*/
    border-radius: 10px;
    box-shadow: inset 0 0 5px rgba(0, 0, 0, 0.2);
    background: #53535338;
}

.allBookGroups::-webkit-scrollbar-track {
    /*滚动条里面轨道*/
    box-shadow: inset 0 0 5px rgba(0, 0, 0, 0.2);
    border-radius: 10px;
    background: #ededed00;
}
#feature p:hover{color:#333}
.how-to-create span{font-size:14px;}
.how-to-create{color:#666;font-size:14px;}
.how-to-create:hover{color:#333;}
#html5book p{color: #EEE;}
#html5book p:hover{color: #fff;}

.loading-box{z-index:111111;left:0;right:0;top:0;bottom:0;background:#f1f1f1;}
.loader{position:absolute;top:50%;left:40%;margin-left:10%;transform:translate3d(-50%,-50%,0);-webkit-transform:translate3d(-50%,-50%,0)}.dot{width:12px;height:12px;background:#333;border-radius:100%;display:inline-block;animation:slide 1s infinite;-webkit-animation:slide 1s infinite;}
.dot:nth-child(1){animation-delay:.1s;-webkit-animation-delay:.1s;background:#333}
.dot:nth-child(2){animation-delay:.2s;background:#666;-webkit-animation-delay:.2s;}
.dot:nth-child(3){animation-delay:.3s;-webkit-animation-delay:.3s;background:#999}
.dot:nth-child(4){animation-delay:.4s;-webkit-animation-delay:.4s;background:#aaa}
.dot:nth-child(5){animation-delay:.5s;-webkit-animation-delay:.5s;background:#ccc}
@-moz-keyframes slide{0%{transform:scale(1)}50%{opacity:.3;transform:scale(2)}100%{transform:scale(1)}}
@-webkit-keyframes slide{0%{transform:scale(1);-webkit-transform:scale(1)}50%{opacity:.3;transform:scale(2)}100%{transform:scale(1)}}
@-o-keyframes slide{0%{transform:scale(1);-webkit-transform:scale(1)}50%{opacity:.3;transform:scale(2);-webkit-transform:scale(2)}100%{transform:scale(1);-webkit-transform:scale(1)}}@keyframes slide{0%{transform:scale(1);-webkit-transform:scale(1)}50%{opacity:.3;transform:scale(2);-webkit-transform:scale(2)}100%{transform:scale(1);-webkit-transform:scale(1)}}

.shelf-row {
    background-image: url(https://baige-static-1251142715.file.myqcloud.com/images/shelf_wood.png);
    background-repeat: no-repeat;
    background-position: bottom;
    padding-bottom: 70px;
    background-size: 100%;
}