pub fn render_html_css() -> StringExpand description
The canonical chord-over-lyrics CSS that the full-document renderers
embed inside <style>.
Returns the default-configuration variant (flex-wrap: wrap on the
.line rule, matching settings.wraplines: true). To obtain the CSS
for a non-default settings.wraplines, call
render_html_css_with_config instead.
Pair this with render_song_body / render_songs_body when the
consumer is supplying its own document envelope: inline the returned
string inside a <style> block, ship it as a separate file referenced
via <link rel="stylesheet">, or merge it into the host’s existing
stylesheet. The contract is byte-stable; consumers can hash the result
for cache-busting filenames.