:open selector has partial support Browser Compatibility Check

Description

The :open CSS pseudo selector is not supported by all browsers.

Applicable standards

• Chrome
• Edge
• Firefox
• Opera
• Safari
• iPhone/iPad

Change history

• 2026.61 Now implemented in Safari.
• 6.56 Mar 2025 Added.

This page describes a web site issue detected in HTML documents by SortSite Desktop and OnDemand Suite.

Rule ID: BugCssSelectorOpen