Font size too small for tutorial equations

[quickgrid]

I am using chrome on windows 10. I have also checked on a cross browser testing site with Firefox and Chrome on windows 7. They both show similar small fonts shown like the first screenshot.

Font scale does not match the preview shown on this commit, pytorch/pytorch_sphinx_theme#35 and the given preview link, https://5c1420f1f7907c558e51f188--shiftlab-pytorch-tutorials.netlify.app/beginner/blitz/autograd_tutorial.html#gradients.

Screenshot

My temporary solution

Currently I am using font-size: 2em or font-size: 200% on .MathJax class for each page load to make it readable.

[holly1238]

We replaced MathJax with KaTeX in #1362 so the small font shouldn't be an issue anymore.