
-webkit-flex-direction, -webkit-flex-wrap, -webkit-flex-flow, -webkit-order, -webkit-flex, -webkit-flex-grow, -webkit-flex-shrink, -webkit-flex-basis, -webkit-justify-content, -webkit-align-items, -webkit-align-self and -webkit-align-content were added as aliases for the unprefixed properties and the values -webkit-flex and -webkit-inline-flex for the display property as aliases for the unprefixed values ( Firefox bug 1274096).The value -webkit-inline-box is now an alias of inline-flex on the display property.-webkit-box-direction, -webkit-box-orient ( Firefox bug 1262049.-webkit-background-clip (as background-clip) text value ( Firefox bug 759568).
-webkit-text-stroke, -webkit-text-stroke-color, -webkit-text-stroke-width ( Firefox bug 1248708). -webkit-text-fill-color ( Firefox bug 1247777). Several -webkit prefixed properties and values have been added for web compatibility, behind the preference, defaulting to false:. The ::first-letter pseudo-element now also matches punctuation characters of type Pd that precede or immediately follow the actual first letter this is a new requirement of CSS Pseudo-element module level 4 ( Firefox bug 1260366). Support for the experimental color-adjust property has been added, allowing pages to specify that background colors and images should be printed ( Firefox bug 1209273). Support for horizontal-in-vertical ( tate-chu-yoko) text has been added via the all value of the text-combine-upright property ( Firefox bug 1097499). Interpolation of clip-path basic shapes in CSS animations and transitions is now supported ( Firefox bug 1110460).
The luminance value for mask-mode has been added the auto value has been renamed to match-source, to match the spec ( Firefox bug 1228354). now supports grid and flex layouts ( Firefox bug 1230207). Percentage tracks are now treated as auto if grid container size is indefinite ( Firefox bug 1264607). Fragmentation for grid layout has been implemented ( Firefox bug 1144096). Our experimental implementation of CSS grids has been updated:. Added support for nested CSS calc() ( Firefox bug 968761). calc() is now supported on the line-height property ( Firefox bug 594933). The calc() has been improved to be closer to the specification:.