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							- -
 
-   browser: >
 
-     Microsoft Edge
 
-   summary: >
 
-     Implement the [`:dir()` pseudo-class](https://developer.mozilla.org/en-US/docs/Web/CSS/:dir) from Selectors Level 4
 
-   upstream_bug: >
 
-     UserVoice#12299532
 
-   origin: >
 
-     Bootstrap#19984
 
- -
 
-   browser: >
 
-     Microsoft Edge
 
-   summary: >
 
-     Implement [sticky positioning](http://html5please.com/#position:sticky) from CSS Positioned Layout Level 3
 
-   upstream_bug: >
 
-     UserVoice#6263621
 
-   origin: >
 
-     Bootstrap#17021
 
- -
 
-   browser: >
 
-     Microsoft Edge
 
-   summary: >
 
-     Implement the HTML5 [`<dialog>` element](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/dialog)
 
-   upstream_bug: >
 
-     UserVoice#6508895
 
-   origin: >
 
-     Bootstrap#20175
 
- -
 
-   browser: >
 
-     Firefox
 
-   summary: >
 
-     Fire a [`transitioncancel` event](https://developer.mozilla.org/en-US/docs/Web/Events/transitioncancel) when a CSS transition is canceled
 
-   upstream_bug: >
 
-     Mozilla#1264125
 
-   origin: >
 
-     Mozilla#1182856
 
- -
 
-   browser: >
 
-     Firefox
 
-   summary: >
 
-     Implement the [`of <selector-list>` clause](https://caniuse.com/#feat=css-nth-child-of) of the `:nth-child()` pseudo-class
 
-   upstream_bug: >
 
-     Mozilla#854148
 
-   origin: >
 
-     Bootstrap#20143
 
- -
 
-   browser: >
 
-     Firefox
 
-   summary: >
 
-     Implement the HTML5 [`<dialog>` element](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/dialog)
 
-   upstream_bug: >
 
-     Mozilla#840640
 
-   origin: >
 
-     Bootstrap#20175
 
- -
 
-   browser: >
 
-     Chrome
 
-   summary: >
 
-     Implement the [`of <selector-list>` clause](https://caniuse.com/#feat=css-nth-child-of) of the `:nth-child()` pseudo-class
 
-   upstream_bug: >
 
-     Chromium#304163
 
-   origin: >
 
-     Bootstrap#20143
 
- -
 
-   browser: >
 
-     Chrome
 
-   summary: >
 
-     Implement the [`:dir()` pseudo-class](https://developer.mozilla.org/en-US/docs/Web/CSS/:dir) from Selectors Level 4
 
-   upstream_bug: >
 
-     Chromium#576815
 
-   origin: >
 
-     Bootstrap#19984
 
- -
 
-   browser: >
 
-     Chrome
 
-   summary: >
 
-     Implement [sticky positioning](http://html5please.com/#position:sticky) from CSS Positioned Layout Level 3
 
-   upstream_bug: >
 
-     Chromium#231752
 
-   origin: >
 
-     Bootstrap#17021
 
- -
 
-   browser: >
 
-     Safari
 
-   summary: >
 
-     Implement the [`:dir()` pseudo-class](https://developer.mozilla.org/en-US/docs/Web/CSS/:dir) from Selectors Level 4
 
-   upstream_bug: >
 
-     WebKit#64861
 
-   origin: >
 
-     Bootstrap#19984
 
- -
 
-   browser: >
 
-     Safari
 
-   summary: >
 
-     Implement the HTML5 [`<dialog>` element](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/dialog)
 
-   upstream_bug: >
 
-     WebKit#84635
 
-   origin: >
 
-     Bootstrap#20175
 
 
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