These non-standard CSS classes are used to differentiate the span elements added by Blink itself in editing.

Status in Chromium

Blink Editing

Deprecated (tracking bug)

Consensus & Standardization

After a feature ships in Chrome, the values listed here are not guaranteed to be up to date.

  • No signal
  • Shipped/Shipping
  • Strongly negative



The span element with those classes make it hard to handle other span elements in editing, so one of them(Apple-style-span) has not been produced since 2011( Other classes will be also removed from Blink. Here is the discussion for intent to remove:

Last updated on 2021-08-29