Delete the current compressed file for styles.css , replace it with the non minified version of it and make the following change.
On line 2972, remove the "!important" property from the class ".qa-q-view-content" :
/* Line - 2972 */
font: 400 16px/1.7 Roboto,sans-serif !important;
it should look like this after:
font: 400 16px/1.7 Roboto,sans-serif;
I was actually thinking about removing these reinforcements of default Material Design standards on this version update, so people have more control over the text and fonts they want to use on text areas.
This was applied i think in version 1.2 because people were just abusing the questions/answers text manipulation when using Wysiwyg editor.
But I think that should be up to the community's manager, to decide whether or not their community should have that type of ability.
I also believe fewer and fewer people are using that editor nowadays, so I think I'll make that adjustment on the next theme update, and possibly remove some features attached to it.
In regards to the "pre" styles, you can just add them on your [ css > custom-styles.css ] , there's no styles applied for that tag, so any styles added should work with no problem.