I have noticed that MathJax formulas are sometimes hidden behind other text and not properly displayed. I observed this only when using HTML-CSS as MathJax Renderer. (For other options the same formulas were displayed fine.) I am on Windows, using Google Chrome Version 78.0.3904.70 (Official Build) (64-bit).

Maybe there are also other factors, but I have seen this in centered formulas that contained \text{...}. I also did some minor experiments with such formulas in the Formatting Sandbox.

Here are some examples, together with screenshots how the formulas are displayed to me:

$$a=\frac{A}{K}, b=\frac{B}{K}, c=\frac{C}{K}, d=\frac{dK}{K} \text{ and } n=\frac{N}{K}.$$

The MathJax code is: $$a=\frac{A}{K}, b=\frac{B}{K}, c=\frac{C}{K}, d=\frac{dK}{K} \text{ and } n=\frac{N}{K}.$$

I see this:


We put $$\overline D=\limsup_{n\to\infty}\frac{w_n}{\sum\limits_{k=1}^n w_k}\text{ and }\underline D=\liminf_{n\to\infty}\frac{w_n}{\sum\limits_{k=1}^n w_k}$$ where $w_k\ge0$ are the given weights.

The formula in this text is: $$\overline D=\limsup_{n\to\infty}\frac{w_n}{\sum\limits_{k=1}^n w_k}\text{ and }\underline D=\liminf_{n\to\infty}\frac{w_n}{\sum\limits_{k=1}^n w_k}$$.

This is how it is displayed for me:


  • $\begingroup$ interesting behavior, if I open for inspection of code behind the scenes, I can scale all math and it partly goes away. but if I close inspection and refresh it comes back despite the scaling. chrome 78 something on a windows PC at the library $\endgroup$
    – user645636
    Oct 25, 2019 at 12:45
  • $\begingroup$ I get the same behavior in Chrome 78 on Mac OS High Sierra. It works fine in Firefox on that machine. I also checked on a Windows machine running Chrome 77 and it worked fine. Maybe this is an issue only on the new Chrome? $\endgroup$ Oct 25, 2019 at 13:15
  • $\begingroup$ The recent Cross-Validated meta post What's going on with MathJax today? may be related to this issue. $\endgroup$ Oct 26, 2019 at 0:56
  • $\begingroup$ Reproduced with Brave (Version 0.71.104 Chromium: 78.0.3904.70 (Official Build) beta (64-bit)), no matter how much I scale the text. $\endgroup$ Oct 29, 2019 at 23:57
  • $\begingroup$ chrome.google.com/webstore/detail/mathjax-plugin-for-github/… ? $\endgroup$
    – user645636
    Oct 30, 2019 at 12:49


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