ul,li{
    padding: 0;
    margin: 0;
}
li{
    list-style: none;
}
ul#tab-bar{
    display: flex;
    width: 100%;
    height: 36px;
}
#tab-bar li,
#tab-bar a{
    background: #1b1b1b;
    color: #fff;
    padding: 0 20px;
    font-size: 15px!important;
    font-weight: 400!important;
    font-family: "宋体"!important;
}
#tab-bar a:hover{
    font-size: 15px!important;
    font-weight: 400!important;
    font-family: "宋体"!important;
}
#tab-bar .tab-item {
    flex: 1;
    position: relative;
}

#tab-bar .tab-item a{
    display: inline-block;
    height: 100%;
    width: 100%;
    line-height: 36px;
}

.tab-item .children-tab-group{
    position: absolute;
    top: 36px;
    left: 0;
    width: 100%;
    display: none;
    z-index: 999!important;
}

/* .tab-item:hover>a+.children-tab-group,
.children-tab-group{
    display: block;
} */

.children-group{
    display: none;
    position: absolute;
    z-index: 999;
}
.children-group a{
    display: block;
}

td.top-bar-item>a:hover+div.children-group,
div.children-group:hover{
    display: block;
}