mathjax and equation size rendering in Jupyter book

[chipbrock]

I need to separately control the size of equation rendering in Jupyter Book between in-line and display mathematics. These are the css commands that have not worked! (I posted a much too-long version of this question which was probably too much to wade through, hence this much briefer retry.)

From _static/mystyle.css which is where I presume this should work...these have no effect on display math. So I'd appreciate learning the actual Mathjax css variables or whether they need to go into a different directory? Thanks.

/*.MathJax { font-size: 1.1em !important; }*/

/*.MathJax {
    font-size: 100% !important;
}*/

/*.math.inline .MathJax  {
  font-size: 1.5rem !important;
}

.math.display .MathJax  {
  font-size: 1.5rem !important;
  color: #b22222;
}*/

/*.MathJax_Display {
  margin: 5em 0em !important;
    color: #b22222;
}*/