body {
    background: url('https://images.cnblogs.com/cnblogs_com/baiyis/1670080/o_211218124952_jiyuanmei.jpg') no-repeat fixed;
    background-size: cover;
}
.navbar {
    background: #000;
}
.navbar .navbar-main a {
    color: #fff!important;
}
.navbar a:link, .navbar a:active, .navbar a:visited {
    color: #409eff;
}
#home {
    opacity: 0.8;
}
.postTitle a:link, .postTitle a:visited, .postTitle a:active {
    color: #409eff;
}
.postTitle {
    border-left: 3px solid #409eff;
}
#blogTitle h2 {
    color: #000;
}