New features
- Use em units for text-indent and horizontal spacing in KFX output
Previously, CSS em values for text-indent, margin-left/right, and
padding-left/right were converted to % using fixed ratios (1em = 3.125%
for text-indent, 1em = 6.25% for horizontal margins). This made indents and
margins viewport-relative — they stayed at a fixed fraction of screen width
regardless of the user's font size setting in the Kindle viewer.
Now em values are preserved as em in KFX output, so indentation and
horizontal spacing scale proportionally when the user changes font size. This
matches KP3 (Kindle Previewer 3) and the Amazon backend conversion pipeline.
Full Changelog: v1.1.5...v1.1.6