update base font-size (fix chrome font-size bug)
update base font-size (fix chrome font-size bug)

Denniskevin/Zhihu-Daily-Reader,nonoroazoro/Zhihu-Daily-Reader,nonoroazoro/Zhihu-Daily-Reader,Denniskevin/Zhihu-Daily-Reader,zaphz/Zhihu-Daily-Reader,Young-Wang/Zhihu-Daily-Reader,zaphz/Zhihu-Daily-Reader,Young-Wang/Zhihu-Daily-Reader