February 2024 web platform update

Now widely available on the web platform

Widely available

• tab-size: The tab-size CSS property sets the width of the tab character. Learn more.

• Visual viewport API: The visualViewport API provides a way to query and modify the user-visible viewport of a web page. Learn more.

Newly available on the web platform

Newly available

• Declarative shadow DOM: The shadowrootmode attribute on <template> creates a shadow root without the use of JavaScript. It is a declarative alternative to the attachShadow() method. Learn more.