html body {
/*
https://www.xmlas.com
字体顺位参照
*/
font-family:微软雅黑,"Microsoft YaHei",宋体,SimSun,PMingLiU,Verdana,Arial,Helvetica,sans-serif;
}

.postBody h1
{
    margin: 15px 0;
    padding: 0;
    font-size: 135%;
}
.postBody h2
{
    margin: 15px 0;
    padding: 0;
    font-size: 125%;
}
.postBody h3
{
    margin: 15px 0;
    padding: 0;
    font-size: 110%;
}