body {
    padding-top: 70px;
    padding-bottom: 130px;
}
nav {
    opacity: 0.85;
}
.navbar-fixed-bottom .row {
    margin: 16px 0px;
}
.thumbnail, .jumbotron {
    margin-top: 100;
    opacity: 0.8;
    height: 500px;
    padding: 10px;
    overflow-y: scroll;
}
.title {
    color: red;
    font-size: 2em;
    font-weight: bold;
}
body, .toc, .panel-header {
    cursor: default;
    user-select: none;
    -webkit-user-select: none;
    font-family:"Microsoft YaHei UI", "Microsoft YaHei", "微软雅黑", "宋体", Tahoma, Arial, Helvetica, sans-serif;
}
#needUpdate {
    text-align: center;
    margin-top:40px;
}
.text-successssss{
    background-image: -webkit-linear-gradient(bottom, green, blue, purple); 
    -webkit-background-clip: text; 
    -webkit-text-fill-color: transparent; 
}
.c_comment{
    position: absolute;
    bottom: 6px;
}