Ruby/styles.css

ruby > rt,
ruby > rtc {
	font-feature-settings: 'ruby' 1;
}

ruby.large {
	font-size: 250%;
}

ruby.larger {
	font-size: 300%;
}

ruby.large > rt,
ruby.large > rtc {
	font-size: .3em;
}

ruby.larger > rt,
ruby.larger > rtc {
	font-size: .25em;
}