h2 {
    background-color: #2175bc;
    color: #fff;
    border-radius: 5px;
    padding-left: 10px;
    line-height: 30px;
}
.cnblogs_code {
    border: solid 0px #939393;
    clear: both;
    padding: 10px 20px;
    background: #ddebf7;
}
.cnblogs_code pre {
    background-color: #ddebf7;
}