.artical {
    font-family: "Microsoft YaHei", sans-serif;
    font-size: 13px;
}

.artical h1 {
    font-size: 17px;
    font-weight: bold;
    background-color: lightblue;
    border-bottom: 1px solid black;
}

.artical p {
    text-indent: 2em;
    margin-top: 0.5em;
    margin-bottom: 0.5em;
}

.artical ol {
    margin-left: 2em;
}

.artical code {
    font-family: Consolas, "Deja Vu Sans Mono", "Courier New";
    color: mediumblue;
}

.artical code b {
    font-size: 14px;
    color: purple;
}

.artical .bold {
    font-weight: bold;
}

.artical .center {
    text-align: center;
}

.artical .code {
    font-size: 14px !important;
    border-top: 1px solid gray;
    border-bottom: 1px solid gray;
}