Summary & Key Takeaways ​

• The article delves into the ::highlight() CSS pseudo-element.
• It explains the functionality of the CSS Custom Highlight API.
• The post demonstrates how to programmatically highlight text using JavaScript and CSS.
• It provides strategies for implementing a fallback feature.
• The focus is on ensuring accessibility and broad browser support through progressive enhancement.
• ::highlight() allows for custom styling of text fragments beyond ::selection or ::search-text.

Our Commentary ​

::highlight() is one of those CSS features that feels incredibly powerful for enhancing user experience, especially for things like search results or custom annotations. The progressive enhancement angle is crucial here; we can't just assume everyone has the latest browser. This is a solid, practical tutorial.