(".hbox > *" margin-right "1rem")
("section > div" padding-left "2rem")
(".year-month input" width "4rem")
("th,td" border "1px solid #ddd" padding "0.125rem 0.5rem" text-align center)
("td:first-child" font-weight bold padding-right "0.75rem")
("th" font-weight bold ("&:first-child" font-size "1rem" border-top 0 border-left 0))