/*********************************************左侧导航栏*****************************************/
.knowlist{
    width: 100%;
    height: 100%;
    overflow: hidden;
}
.leftmenu{
    width: 19.8rem;
    background-color: white;
    border: 0.1rem solid #ccc;
    margin: 1rem auto auto 1rem;
    float: left;
}
.title_gs{
    width: 100%;
    height: 4rem;
    background-color: #50B4FB;
    margin-bottom: 0.1rem;
    position: relative;
    cursor: pointer;
}
.gradesubtitle,.firstknowlist{
    font-size: 1.2rem;
    color: #ffffff;
    width: 16rem;
    padding-top: 1rem;
    padding-left: 1rem;
    float: left;
}
.grade_block,.firknow_block{
    display: none;
    width: 100%;
    height: auto;
    background-color: #ffffff;
    box-shadow: 0 0.6rem 1.2rem rgba(0, 0, 0, 0.176);
    position: absolute;
}
.eachvalue,.eachgs{
    overflow: hidden;
    padding-left: 1rem;
    width: 100%;
    height: 3rem;
    /*list-style: disc inside none;*/
    /*text-overflow: ellipsis;*/
    /*white-space: nowrap;*/
    font-size: 1.2rem;
    line-height: 3.3rem;
    cursor: pointer;
    color: #333333;;
}
.eachvalue:hover,.eachgs:hover{
    background-color: #DDF1FF;
    color: #50B4FB;
}
.first_know{
    width: auto;
    height: 3.2rem;
    background-color: #8ED0FF;
    position: relative;
    cursor: pointer;
}
.secthir_know{
    height: 46.5rem;
    width: 100%;
    overflow-y: auto;
}
.secthirknowlist{
    height: 100%;
    width: 100%;
    font-size: 1.2rem;
}
.secknowlist{
    width: 18rem;
    text-overflow: ellipsis;
    white-space: nowrap;
    overflow: hidden;
    display: inline-block;
}
.secvalue_div{
    padding-top: 2rem;
}
.secvalue{
    margin-left: 0.5rem;
}
.secvalue:hover{
    color: #50B4FB;
    cursor: pointer;
}
.thivalue{

}
.thivalue:hover{
    color: #50B4FB;
    cursor: pointer;
}
.thiknowvalue{
    height: auto;
    width: 100%;
    font-size: 1.2rem;
    display: inline-block;
}
.eachthirdknow{
    margin-top: 1.5rem;
    width: 12rem;
    text-overflow: ellipsis;
    white-space: nowrap;
    overflow: hidden;
    display: inline-block;
    margin-left: 4rem;
}
.arrow_up::before{background-position: -1em -315.4em;width:1.3em;height:1.3em;}
.arrow_down::before{background-position: -1em -318.5em;height:1.3em;width:1.3em;}
.epoint::before{background-position:-1em -140em;height:0.7em;width:0.8em}
.bnull_data::before{background-position: -1em -101em;width: 18em;height: 17.2em;}
.select{
    position: absolute;
    top: 1.1rem;
    right: 1rem;
}
.chooseone{
    margin-left: 2rem;
}
.choosetwo{
    margin-left: 4rem;
    margin-top: 2rem;
    display: inline-block;
}
.clickclass{
    color: #50B4FB;
}
/*空数据页面*/
.nodata{
    margin-top: 8rem;
    margin-left: 27rem;
}
.classAddDiv p{
    text-align: center;
    font-size: 1.4rem;
    color: #669999;
    margin: 2rem;
}
/*********************************************题目类型难度选择*****************************************/
.rightres{
    margin-top: 1rem;
    overflow: hidden;
    margin-right:1rem;
    float: right;
}
.topselect{
    display: inline-block;
    overflow: hidden;
    width: 77.6rem;
    background-color: white;
    padding-left: 1rem;
    margin-left: 1rem;
}
.typediv,.degreediv{
    display: block;
    margin-top: 1rem;
    overflow: auto;
    clear: both;
}
.typetitle{
    color: gray;
    display: block;
    float: left;
    font-size: 1.2rem;
}
.typeContainer{
    float: left;
    display: block;
    width: 72rem;
}
.typeColumn{
    margin-left: 1rem;
    white-space: nowrap;
    cursor: pointer;
    font-size: 1.2rem;
}
.filterBg{
    background-color: #50B4FB;
    color: white;
}
.rightdata{
    width: 79.5rem;
}
.quenums{
    height: 2.6rem;
    color: gray;
    background-color: white;
    border-bottom: 0.1rem solid #cccccc;
    padding-left: 1rem;
    width: 77.6rem;
    margin-left: 1rem;
    padding-top: 0.6rem;
}
.quetionslist {
    padding-top: 1rem;
    margin-left: 1rem;
    overflow-y: hidden;
}