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August 26th, 2026 ×

8 New CSS, JS and HTML Features You Should Know

Wes Bos

Wes Bos Host

Scott Tolinski

Scott Tolinski Host

or
Show Notes Transcript

Scott and Wes run through eight new CSS, JS, and HTML features landing in browsers; including the relative alpha() color function, the progress() function for calculating values between units, Promise.allKeyed(), and native camera and microphone elements. They also get into an upgraded attr(), shrink-to-fit containers, and text-box-trim for finally killing that annoying extra space above your text.

Show Notes

  • 00:00 Welcome to Syntax!
  • 00:22 CSS Alpha() Relative Color Function
  • 02:25 Brought to you by Sentry.io
  • 02:48 CSS CSS Progress() Function: Calculate Values Between Units
  • 05:09 Promise.allKeyed(): Object-Based Promise Resolution
  • 06:55 Camera and Microphone HTML Elements
  • 09:24 Advanced CSS Attr() Function: Props for CSS
  • 11:25 CSS Sibling-Index() and Sibling-Count() Functions
  • 13:56 CSS Shrink-to-Fit Container
  • 15:36 CSS Text-Box-Trim and Text-Box-Edge

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