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What’s !important #12: Safari Testing, ::checkmark, HTML Anchor Positioning, and More

2026-05-29

5 min read

by Daniel Schwarz

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The article explores recent CSS and web platform developments for frontend developers.

•Safari testing options are available for developers without direct access to Safari
•The new ::checkmark pseudo-element enables styling of checkmarks and form input indicators
•border-shape combined with shape() function provides flexible shape styling alternatives
•sibling-index() and sibling-count() CSS functions allow advanced element selection and manipulation
•HTML anchor associations can be managed using data attributes with advanced attr() syntax

This summary was automatically generated by AI based on the original article and may not be fully accurate.

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