小米米官网：
font-family: "Arial","Microsoft YaHei","黑体","宋体",sans-serif;
淘宝技术研发中心：
font: 12px/1.5 Tahoma,Helvetica,Arial,'宋体',sans-serif;
淘宝UED：
font: 12px/1 Tahoma,Helvetica,Arial,"\5b8b\4f53",sans-serif;
一淘UX :
font-family: Helvetica, 'Hiragino Sans GB', 'Microsoft Yahei', '微软雅黑', Arial, sans-serif;
font: 12px/1 Tahoma,Helvetica,Arial,"\5b8b\4f53",sans-serif;
新浪：
font: 12px/20px "SimSun","宋体","Arial Narrow",HELVETICA;
锤子科技：
font-family: Helvetica,Arial,"Hiragino Sans GB","Microsoft Yahei","微软雅黑",STHeiti,"华文细黑",sans-serif;
淘宝：
font: 12px/1.5 tahoma,arial,"Hiragino Sans GB",宋体,sans-serif;
京东:
font: 12px/150% Arial,Verdana,"宋体";
总结：
1，Arial出镜率最高，一般在第二位，Arial 确实是前 ClearType 时代 Windows 里最好的几个正文字体之一（还有 Verdana 和 Tahoma 等）。
2，其次是Tahoma，很多网站把它放在第一位。
3，宋体，“SimSun”—微软宋体，一般放在最后两位。
4. Tahoma，Arial，Verdana可以放在前边，宋体放在最后。其他可以尝试用下微软雅黑等字体。
附录通用的 body 初始化代码：
a, abbr, acronym, address, applet, article, aside, audio, b, big, blockquote, canvas, caption, center, cite, code, dd, del, details, dfn, div, dl, dt, em, embed, fieldset, figcaption, figure, footer, form, h1, h2, h3, h4, h5, h6, header, hgroup, i, iframe, img, ins, kbd, label, legend, li, mark, menu, nav, object, ol, output, p, pre, q, ruby, s, samp, section, small, span, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, time, tr, tt, u, ul, var, video {
margin: 0;
padding: 0;
}
body {
color: #666;
font-family: Helvetica,Arial,"Hiragino Sans GB","Microsoft Yahei","微软雅黑",STHeiti,"华文细黑",sans-serif;
font-size: 14px;
}