Widden the gap between headers.
Widden the gap between headers.

leesei/hexo-theme-freemind,yieme/hexo-theme-freewill,JoshuaZe/freemind,wzpan/hexo-theme-freemind,blackshow/hexo-theme-freemind.386,wzpan/hexo-theme-freemind,leesei/hexo-theme-freemind,chenzaichun/hexo-theme-freemind,zhi1ong/hexo-theme-freemind,oomusou/hexo-theme-openmind