• Added: :where too all selectors, reducing specificity to nearly zero.
• Added: All elements now use background-repeat: no repeat.
• Removed: Overly specific select selector.
• Removed: Unnecessary focus outline fix previously used in Firefox.
• Removed: Unnecessary evergreen.css, forms.evergreen.css, and pages.css.
• Fixed: Prevent zero-width space from consuming space in Safari.
• Changed: Browser support from "last three versions" to "last two versions".

assets.css

• Added: video to sizing restrictions.

font/system-ui.css

• Added: Support for system-ui font family in Firefox.

font/ui-monospace.css

• Added: Support for ui-monospace font family in Chrome, Edge, and Firefox.

12.0.1 (August 20, 2020)

• Fixed: Used case-insensitive attribute selectors in the evergreen variations.

12.0.0 (August 20, 2020)

• Added: Correct table border color inheritance in all Chrome, Edge, and Safari.
• Added: Remove text indentation from table contents in Chrome, Edge, and
  Safari.
• Added: Correct the inheritance of horizontal rule border color in Firefox.
• Added: Prevent overflow of a pre container in all browsers (opinionated).
• Added: Evergreen variations of sanitize.css (basically, without IE support).
• Added: Reduce animations, scrolling effects, and transitions when requested in
  all browsers (opinionated) to reduce-motion.css.
• Updated: Move size restrictions (opinionated) in all browsers to assets.css.
• Removed: Tapping delay style, except in IE 10, where it matters.
• Removed: Border and padding from color and range input in all browsers.
• Fixed: Announce nav ol, nav ul list semantics on Safari with VoiceOver.

12.0.0 (August 20, 2020)

• Added: Correct table border color inheritance in all Chrome, Edge, and Safari.
• Added: Remove text indentation from table contents in Chrome, Edge, and
  Safari.
• Added: Correct the inheritance of horizontal rule border color in Firefox.
• Added: Prevent overflow of a pre container in all browsers (opinionated).
• Added: Evergreen variations of sanitize.css (basically, without IE support).
• Added: Reduce animations, scrolling effects, and transitions when requested in
  all browsers (opinionated) to reduce-motion.css.
• Updated: Move size restrictions (opinionated) in all browsers to assets.css.
• Removed: Tapping delay style, except in IE 10, where it matters.
• Removed: Border and padding from color and range input in all browsers.
• Fixed: Announce nav ol, nav ul list semantics on Safari with VoiceOver.

11.0.1 (May 20, 2020)

• Fixed: Documentation is updated.

This release is primarily made to update the polyfill used by cdnjs.

11.0.0 (June 3, 2019)

• Changed: Opinionated select background styling in forms.css is no longer applied when multiple or size attributes are also present.

10.0.0 (June 3, 2019)

• Added: Opinionated page measure via page.css.
• Added: Opinionated border normalization on form controls to match UA.
• Added: Opinionated font and letter-spacing as inherit on form controls.
• Added: Opinionated normalization of select controls.
• Added: Opinionated normalization of placeholders in Internet Explorer.
• Added: Opinionated border removal on iframes in all browsers.
• Removed: Opinionated border-radius on form controls.
• Removed: Opinionated box-shadow on form controls to match UA expectations.
• Fixed: Edge comments without Chrome are are changed to Edge 18-.
• Fixed: Chrome comments without Edge have Edge added.
• Fixed: Nested list dl normalizations split.
• Fixed: Logical margin-block normalization changed to margin.
• Fixed: Used consistent quotes around typefaces in typography.css.

These fixes were brought in from normalize.css v10.1.0.

9.0.0 (May 16, 2019)

• Removed: Opinionated removal of text shadow on text selections due to bugs in High Contrast mode.
• Removed: Opinionated removal of repeating backgrounds in all browsers due to form control unstyling.
• Removed: Opinionated interface typography in all browsers, which is moved to forms.css and typography.css.
• Changed: Visually hidden content now uses some less aggressive selectors.
• Added: Opinionated interface typography in all browsers via typography.css.
• Added: Opinionated standards-like form styling in all browsers via forms.css.
• Added: Opinionated removal of the grey highlight when tapping links in iOS.

• Changed: Apply aria-disabled disabled styles when [aria-disabled="true"]
• Changed: Apply svg { fill: currentColor } when svg:not([fill])
• Fixed: Apply appropriate system font fallbacks for KDE Plasma

• Support the 4-space tab width in Firefox (opinionated)
• Update documentation

• Use the default user interface font in all browsers (opinionated).
• Use the default monospace user interface font in all browsers (opinionated).
• Use a 4-space tab width in all browsers (opinionated).
• Fix correction of cursor style of increment and decrement buttons
  in Safari, not Chrome.
• Correct the text style of placeholders in Chrome, Edge, and Safari.
• Remove unnecessary form control margin normalizations in Firefox.
• Remove opinionated fieldset padding in all browsers.
• Remove ::-moz-focus-inner and :-moz-focusring normalizations
  fixed in Firefox 53
  https://bugzilla.mozilla.org/show_bug.cgi?id=140562