Jonas Jenwald 9eed8c3576 Replace dir-dependent left/right with logical properties
*Please note:* This is another step in a series of patches to simplify/modernize the viewer CSS.

Rather than having to manually specify ltr/rtl-specific left/right-values in the CSS, we can use logical `inset-inline`/`inset-inline-start`/`inset-inline-end` instead.
These logical properties depend on, among other things, the direction of the HTML document which we *always* specify in the viewer.

Given that most of these logical CSS properties are fairly new, and that cross-browser support is thus somewhat limited (see below), we rely on the previously added PostCSS plugins in order to support this in the GENERIC viewer.

 - https://developer.mozilla.org/en-US/docs/Web/CSS/inset-inline#browser_compatibility
 - https://developer.mozilla.org/en-US/docs/Web/CSS/inset-inline-start#browser_compatibility
 - https://developer.mozilla.org/en-US/docs/Web/CSS/inset-inline-end#browser_compatibility
2022-03-19 14:44:01 +01:00
..