/*CodingLife*/
#mainContent {
    background: none;
    float: right;
    overflow: visible;
    text-overflow: ellipsis;
    width: 890px;
    word-break: break-all;
}
#sideBar {
    width: 290px;
    margin-right: 20px;
    margin-left: 0px;
    float: left;
    text-overflow: ellipsis;
    overflow: visible;
    word-break: break-all;
}

/*回到顶部*/
#back-to-top {
    background-color: #f0eef5;
    /*bottom: 90px;*/
    top: 90px;
    box-shadow: 0 0 6px #f0eef5;
    padding: 5px 5px;
    position: fixed;
z-index: 3;
width: 14px;
line-height: 18px;
    right: calc( 50% - 600px );
    border-radius: 0px;
    opacity: 0.7;
}