body { margin: 8% 10%}
div, h1, h2 { line-height: 150%}
ruby { line-height: 100%}
rt { line-height: 50%}
span.notes {font-size: smaller}
img.gaiji { width: 1em; height: 1em}
#rt:before { content: "(" }
#rt:after { content: ")" }