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webinista (Tiffany Brown)

  • Open Web Advocate
  • Opera Software
  • Los Angeles, CA USA / Oslo, Norge

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@supports


Tested for presence of window.CSSRule.SUPPORTS_RULE or window.CSSRule.WEBKIT_SUPPORTS_RULE in Chrome 24 and 25 (Canary). Not currently enabled. Coming soon, though.

CSSSupportsRule


CSSSupportsRule


Support added in Opera 12.10

Using the Page Visibility API


Using the Page Visibility API