css3-text-decor][css4-background] @pattern for defining filling and decoration patterns from Sebastian Zartner on 2012-09-24 (www-style@w3.org from September 2012)
CSS Text-decoration - TAE
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CSS text-decoration Property
HTML Text Decoration | How does text-decoration work in HTML?
html - Is it possible to change to the underline height from when the developer uses `text-decoration: underline;` in CSS to create an underline? - Stack Overflow
CSS text-decoration Property
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20 Examples of Beautiful CSS Typography Design - WDExplorer
When to Avoid the text-decoration Shorthand Property | CSS-Tricks - CSS -Tricks