Browsers still fail at being good document viewers: 1. For a long time now Chromium didn't support MathML. It's only coming back in the upcoming version. 2. F

Browsers still fail at being good document viewers: 1. For a long time now Chromium didn't support MathML. It's only coming back in the upcoming version. 2. Firefox's implementation of MathML is buggy: <http://0x0.st/o7HQ.16.mov http://0x0.st/o7HQ.16.mov>. 3. There is no CSS property to enable grouping of threes of digits in large numbers, so you need to put spaces into the markup, resulting in them being included when copied and search discovering completely different numbers than the ones you want to present. 4. And just try making this table reproducing the proper alignment of numbers in HTML: <https://practicaltypography.com/samples/number-grid-after.pdf https://practicaltypography.com/samples/number-grid-after.pd...>. It's hell.