I don’t know what’s going on.
Given this css:
.HyperMD-header-2, .markdown-preview-view h2, h2 {
font-size: 1.2 em;
color: #a3be8c; /* was a3be8c */
font-weight: 600;
border-bottom: 1px dashed;/* options: solid, dashed, dotted, double, thick double */
padding: 10px 0px 0px 5px;
I save my file, and inspector displays this:

Note the 2nd inspector element:
.markdown-preview-view h2 displaying a font-size of 1.6em which is no where in my css
I should have added this as well, showing h2 as 1.5em, although it is in strikeout
