CSS underscore hack no longer works Browser Compatibility Check

Description

The CSS underscore filter hack no longer works in IE7 or later.

Help

Underscored property names are treated as custom properties in IE7. Conditional comments are a fully supported, standards-compliant alternative.

Applicable standards

Change history

  • 5.33 Apr 2019 Removed.
  • 4.0 Jun 2010 Added.

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

Rule ID: BugIeCssHackUnderscoreFilter