KaTeX css is not rendering correctly \overline

[thiagopnobre]

Sometimes katex just not renders the line of the \overline, depending on the zoom or the font-size.

• Example without zoom:
  

• Example with zoom:
  

[thiagopnobre]

Maybe the problem is because of the em used in <span class="overline-line" style="border-bottom-width:0.04em;"></span>. I think that might be a good idea to change it to 1px or something like that.

[edemaine]

I suspect that this is a further consequence of #824. We're still at a loss for the right fix.

Note that 1px in CSS does not mean 1 pixel -- it means 1/96 inches. (On the other hand, 1px is supposed to be guaranteed to look nice.) We'd like to match LaTeX's lengths, but we obviously want to get the browser to round up instead of down.

[trimbonz]

I can confirm that fraction lines do not appear in old Android webView clients up to and including API 19 (KitKat). I can work around this by making the fraction line a bit bigger - in katex.min.js I changed the first entry of the DefaultRuleThickness array from 0.04 to 0.06. This changes the inline style for the fraction line to 0.06em, which is apparently enough for it to show up in a WebView. Playing with the values I found that 0.059 doesn't display but 0.5999 does, so there is a threshold there somewhere.

[edemaine]

Just-merged #931 should fix the frac line issue, thanks to @ronkok! Please test against master if you can.

[kevinbarabash]

@thiagopnobre this should be fixed with the release of v0.9.0-alpha1. Please re-open if this is still an issue.

[thiagopnobre]

Sorry for the delay guys. It worked. 🙂