wordpress支持在自定义额外CSS，这样我们就无需改动主题里的源文件即可轻松调整网页的外观。分享一个自用的代码。

定义字体、字号¹

body {font-family: Helvetica, Tahoma, Arial, "Microsoft YaHei", "Hiragino Sans GB", "WenQuanYi Micro Hei", sans-serif;
 font-size:16px;}

标题

.entry-title, .widecolumn h2 {
    font-size: 28px;
    font-weight:600;
}

.entry-content h3 {
    font-size: 20px;
    }
.entry-content h4, .entry-summary h4, .page-content h4, .comment-content h4 {
    font-size: 18px;
    
}

代码格式²

.wp-block-code {
    display: block;
    font-size: 14px;
    line-height: 22px;
    overflow-x: auto;
    white-space: pre;
    word-wrap: normal;
    border-radius: 4px;
    padding: 8px;
    color: #abb2bf;
    background: #282c34;
}

2020.2.29所用font-family

Lato,pingfang sc,microsoft yahei,sans-serif;

目前网站使用的font-family

font-family: -apple-system, SF UI Text, PingFang SC, Hiragino Sans GB, Microsoft YaHei, WenQuanYi Micro Hei, Arial, sans-serif;

参考文献

1. 达芬奇密码 ．中文网页字体的最佳选择[OL]https://sq.163yun.com/blog/article/176137697898717184
2. https://www.csdn.net/
3. koreyhan. 如何优雅的选择字体(font-family) https://segmentfault.com/a/1190000006110417