#gotop {
    display:none;
    width:50px;
    height:50px;
    position:fixed;
    right:20px;
    bottom:20px;
    background:url(https://images.cnblogs.com/cnblogs_com/snowsolf/497956/o_backtop.gif) no-repeat 0px 0px;    
}
a[href="#top"]{
    display:none;
}

center{
    font-size: 20px;
}

/*#blog_post_info {
    display: block;
    position: fixed;
    bottom: 90px;
    right: 0px;
}*/

#TOC {
    display: block;
    position: fixed;
    top: 23%;
    right: 0px;
    min-width: 50px;
    max-width: 50px;
    max-height: 25px;
    line-height: 250%;
    overflow: hidden;
    border: 1px solid #aaa;
    border-radius: 0 0 1px 1px;
    -moz-border-radius: 0 0 1px 1px;
    background: rgba(249,249,249,0.75);
    padding: 12px;
    box-shadow: 0 1px 8px #000;
    -webkit-box-shadow: 0 1px 8px #000;
    -moz-box-shadow: 0 1px 8px #000;
}
#TOC:hover {
    display: block;
    position: fixed;
    top: 23%;
    right: 0px;
    min-width: 100px;
    max-width: 350%;
    max-height: 70%;
    line-height: 250%;
    overflow-y: scroll;
    border: 0px solid #aaa;
    border-radius: 0 0 1px 1px;
    -moz-border-radius: 0 0 1px 1px;
    background: rgba(249,249,249,0.75);
    padding: 12px;
    box-shadow: 0 1px 8px #000;
    -webkit-box-shadow: 0 1px 8px #000;
    -moz-box-shadow: 0 1px 8px #000;
}
.TOCEntry {
    font-family: sans-serif;
}
.TOCEntry a {
    text-decoration: none;
}
.TOCLevel1{
    font-size:25px;
}
h1{
    font-size:25px;
    border-style: solit;
    border-width: 1px;
    border-color: black;
}
.TOCLevel2{
    font-size: 20px;
    margin-left: 25px;
}
h2{
    font-size: 20px;
}
.TOCLevel3{
    font-size: 15px;
    margin-left: 50px;
}
h3,h4,h5,h6{
    font-size: 15px;
}
.TOCLevel4{
    font-size: 15px;
    margin-left: 75px;
}
.TOCLevel5{
    font-size: 15px;
    margin-left: 100px;
}
.TOCLevel6{
    font-size: 15px;
    margin-left: 125px;
}
.TOCSectNum:after {
    content: " ";
}
#TOC [href]:hover{
    text-decoration: underline;
}