:root {
    --themeColor: #002a80;
    --themeColored: #0000EE;
}

*{
    padding: 0;
    margin: 0;
    font-family: "微软雅黑", tahoma, arial, "宋体", sans-serif;
    /*font-family: "Droid Serif",Georgia,serif;*/
    font-size: 14px;
    /*user-select: auto;*/
}
html, body{
    height: 100%;
    /*width: 100%;*/
    width: 1280px;
    background: #e0e0e0;
    box-sizing: border-box;
    display: block;
    /*min-width: 1280px;*/
    /*overflow-x: hidden;*/
    /*overflow-y: hidden;*/
    margin: 0 auto;
}
.c-nav {
    width: 0;
    height: 0;
    border-top: 6px solid #9ca4ac;
    border-left: 6px solid transparent;
    border-right: 6px solid transparent;
}
ul{
    /*list-style: none;*/
    padding: 0;
    margin: 0;
}
li{
    list-style: none;
}
a{
    text-decoration: none;
}
a:hover{
    text-decoration: none;
}
.main-group{
    overflow: auto;
    overflow-y: scroll;
}

.div-button{
    color: white;
    user-select: none;
    background-color: var(--themeColor);
    text-align: center;
    height: 38px;
    line-height: 38px;
    border-radius: 3px;
    font-size: 14px;
}
.div-button:hover{
    background-color: var(--themeColored);
    cursor: pointer;
}
.div-button:active{
     background-color: var(--themeColor);
}