/*溢出隐藏设置*/
#topics, #mainContent {
    overflow: visible;
}
#postDesc {
    float: none;
}

#cnblogs_post_body img {
    max-width: 950px;
}
/*背景设置*/
#home h1{
    font-size:45px;
}
body{
background-image: url("https://dss3.bdstatic.com/lPoZeXSm1A5BphGlnYG/skin/722.jpg?2"); background-position: initial; background-size: cover; background-repeat: no-repeat; background-attachment: fixed; background-origin: initial; background-clip: initial;
height:100%;
width:100%;
}
 
#home{
    opacity:0.9;
}
.wall{
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
}
/*返回顶部小火箭*/
#back-top {
     position: fixed;
     bottom: 10px;
     right: 5px;
     z-index: 99;
}
#back-top span {
     width: 50px;
     height: 64px;
     display: block;
     background:url(https://images.cnblogs.com/cnblogs_com/seanshao/855033/o_rocket.png) no-repeat center center;
}
#back-top a{outline:none}