Popover API and Anchor Positioning

Scott and Wes break down the biggest web platform features that reached Baseline in 2025, separating the genuinely useful APIs from the niche and forgettable ones. From same-document view transitions and the Popover API to Promise.try, content-visibility, and modern CSS goodies, they share what’s actually ready to use today.

Show Notes

• 00:00 Welcome to Syntax!
• 01:37 24 new web APIs that reached baseline in 2025.
• 01:49 Same-document view transitions for single-page applications.
• 05:28 abs()
• 08:22 Brought to you by Sentry.io.
• 09:20 JSON Module Scripts.
• 10:10 Popover API.
• 13:07 Base64 to UInt8Array.
  • Better Binary Batter Mixing
• 16:11 @starting-style
  • Scott’s A CSS Only Accordion with <details>
  • Scott’s Mobile Nav
• 17:39 allow-discrete
• 21:31 Promise.try
• 22:51 content-visibility

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