*{
    margin: 0;
    padding: 0;
}


::-webkit-scrollbar
{
    width:0px;
    background-color:#F5F5F5;
}
/*定义滚动条轨道：内阴影+圆角*/
::-webkit-scrollbar-track
{
    background-color:#F5F5F5;
}
/*定义滑块：内阴影+圆角*/
::-webkit-scrollbar-thumb {
    border-radius: 10px;
    background-color: #555;
}

.title-item {
    color: #FFFFFF;
    height: 40px;
    font-size:20px;
    text-align: center;
}

.main {
    background-image: url("./bg.png");
    height: 1080px;
    width: 1920px;
    margin: 0;
    padding: 0;
}
.main-container{
    /*background-image: url("./bg.png");*/
    height: 964px;
    width: 1888px;
    padding: 0px 16px 16px 16px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.menu-container{
    height:959px;
    width: 468px;
    border: 1px solid #056AE7;
    margin-top: 3px;
    margin-right: 5px;
    overflow:auto;
    scrollbarwidth: thin; /* 设置滚动条宽度 */
}

.menu-title{
    display: flex;
    justify-content: flex-start;
    align-items: center;
    flex-wrap: wrap;
    color: #FFFFFF;
    font-size: 20px;
    img{
        margin: 10px;
    }
}

.class-container{
    width: 438px;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    flex-wrap: wrap;
    color: #FFFFFF;
    margin: 0px 20px;
    font-size: 16px;
    text-align: center;
   .class-item{
       width: 126px;
       height: 90px;
       img{
           width: 40px;
           height: 40px;
       }
   }
}

.class-item{
    width: 126px;
    height: 90px;
    img{
        width: 40px;
        height: 40px;
    }
}

.video-container{
    height:959px;
    width: 1406px;
    border: 1px solid #056AE7;
    margin-top: 3px;
    margin-left: 5px;
}

.sel2
{
    height:30px;
    float: right;
    width:65px;
}

.main-header{
    height: 105px;
    width: 1920px;
    background-image: url("./头部.png");
}

.sy{
    width: 198px;
    height: 42px;
    position: absolute;
    left: 83px;
    top:32px;
    background-image: url("./tab页默认效果.jpg");
    background-size: cover;
    background-position: center;

    div {
        width: 198px;
        height: 42px;
        line-height: 42px;
        font-size: 20px;
        color: rgba(216,254,255,1);
        text-align: center;
    }
}


.jyjx{
    width: 198px;
    height: 42px;
    position: absolute;
    left: 283px;
    top:32px;
    background-image: url("./tab页默认效果.jpg");

    div {
        width: 198px;
        height: 42px;
        line-height: 42px;
        font-size: 20px;
        color: rgba(216,254,255,1);
        text-align: center;
    }
}

.zsxx {
    width: 198px;
    height: 42px;
    position: absolute;
    left: 483px;
    top:32px;
    background-image: url("./tab页默认效果.jpg");

    div {
        width: 198px;
        height: 42px;
        line-height: 42px;
        font-size: 20px;
        color: rgba(216,254,255,1);
        text-align: center;
    }
}

.jyxx {
    width: 198px;
    height: 42px;
    position: absolute;
    left: 511px;
    top:32px;
    background-image: url("./tab页默认效果.jpg");

    div {
        width: 198px;
        height: 42px;
        line-height: 42px;
        font-size: 20px;
        color: rgba(216,254,255,1);
        text-align: center;
    }
}

.zwhq{
    width: 198px;
    height: 42px;
    position: absolute;
    left: 1239px;
    top:32px;
    background-image: url("./tab页面右边未选中.pic.jpg");

    div {
        width: 198px;
        height: 42px;
        line-height: 42px;
        font-size: 20px;
        color: rgba(216,254,255,1);
        text-align: center;
    }
}

.jsxx {
    width: 198px;
    height: 42px;
    position: absolute;
    left: 1439px;
    top:32px;
    background-image: url("./tab页面右边未选中.pic.jpg");

    div {
        width: 198px;
        height: 42px;
        line-height: 42px;
        font-size: 20px;
        color: rgba(216,254,255,1);
        text-align: center;
    }
}

.xsxx {
    width: 198px;
    height: 42px;
    position: absolute;
    left: 1488px;
    top:32px;
    background-image: url("./tab页面右边未选中.pic.jpg");

    div {
        width: 198px;
        height: 42px;
        line-height: 42px;
        font-size: 20px;
        color: rgba(216,254,255,1);
        text-align: center;
    }
}

.shfw {
    width: 198px;
    height: 42px;
    position: absolute;
    left: 1624px;
    top:32px;
    background-image: url("./tab页面右边未选中.pic.jpg");

    div {
        width: 198px;
        height: 42px;
        line-height: 42px;
        font-size: 20px;
        color: rgba(216,254,255,1);
        text-align: center;
    }
}

.jxxc {
    width: 198px;
    height: 42px;
    position: absolute;
    left: 1639px;
    top:32px;
    background-image: url("./tab页面右边选中.pic.jpg");

    div {
        width: 198px;
        height: 42px;
        line-height: 42px;
        font-size: 20px;
        color: rgba(255,190,34,1);
        text-align: center;
    }
}