Use
text-wrap: balance;on headings and subheadings. And usetext-wrap: pretty;on paragraphs of text to get rid of orphans on the last line. Despite the Chromium-only support, these would be a good candidate for progressive enhancement.
The performance impact is generally negligible but there in extreme conditions.
It was once famously said that the web is 95% typography. You can't be a web designer and ignore type! We have an in-depth course on web typography from Jason Pamental getting into things like responsive styles, variable fonts, font loading, and more.
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