p.p1 { margin: 0.0px 0.0px 0.0px 0.0px; line-height: 14.0px; font: 12.0px Times; color: #9ea5b2 }
p.p2 { margin: 0.0px 0.0px 0.0px 0.0px; line-height: 14.0px; font: 12.0px Times; color: #353a48; background-color: #f2f5f7 }
p.p3 { margin: 0.0px 0.0px 0.0px 0.0px; text-align: center; line-height: 14.0px; font: 12.0px Times; color: #9ea5b2 }
p.p4 { margin: 0.0px 0.0px 0.0px 0.0px; line-height: 14.0px; font: 12.0px Times; min-height: 14.0px }
p.p5 { margin: 0.0px 0.0px 0.0px 0.0px; line-height: 14.0px; font: 12.0px Times; color: #666666; background-color: #f2f5f7 }
p.p6 { margin: 0.0px 0.0px 0.0px 0.0px; line-height: 14.0px; font: 12.0px Arial; color: #9ea5b2 }
p.p7 { margin: 0.0px 0.0px 0.0px 0.0px; line-height: 14.0px; font: 12.0px Arial; color: #fcfdfe; min-height: 14.0px }
span.s1 { }
span.s2 { text-decoration: underline }
group varint
https://github.com/facebook/folly/blob/master/folly/docs/GroupVarint.md
这个是facebook的实现