/*侧边目录*/
#navCategory {
    position: fixed;
    left: 0;
    top: 100px;
    list-style: none;
    z-index: 99999;
}

#navCategory > #mylist {
    position: absolute;
    background-color: deepskyblue;
    border-radius: 9px;
    width: 20px;
    left: 0px;
    font-size: 30px;
    font-weight: bold;
    border-radius: 5px;
    opacity: 0.8;
    background: deepskyblue;
}

#mylist > b {
   font-size: 20px;
}

#navCategory > #myul {
    background: lightskyblue;
    border-radius: 9px;
    height: 400px;
    width: 330px;
    padding-top: 5px;
    overflow: auto;
    display: none;
}

#navCategory ul, #navCategory li {
    list-style: none !important;
    margin: 5px !important;
}