.source{
    border:1px solid #DDDDDD;
    padding:3px 10px;
}

#mainContent .postBody h2 {
    border-top-left-radius: 4px;
    border-top-right-radius: 4px;
    background-color: #406CA4;
    color: white;
    font-family: 宋体,Calibri;
    font-weight: bold;
    font-size: 20px;
    margin: 15px 0px 15px 0;
    padding: 5px;
    box-shadow: 0 0 0 1px #406CA4, 1px 1px 6px 1px rgba(10, 10, 0, 0.5);
    text-shadow: 2px 2px 3px #222222;
}