Custom sheet question: "-style" -prefix???

So, I'm super new to the custom sheet system. Just messing around right now. But I cannot for the life of me get my CSS styling to be recognized in the CSS sheet for the HTML element I've entered. In the guide ( <a href="https://wiki.roll20.net/Building_Character_Sheets" rel="nofollow">https://wiki.roll20.net/Building_Character_Sheets</a> ) it says that, "In the CSS file, all class-names must have a '-style' -prefix in their name..." I tried this, but it can't be right because A) the class shows up red and B) it has no affect on the element. Even though I'm fairly familiar with CSS and HTML I'm feeling a little dumb and exasperated here. :( Below, some screenshots:

Further down that page, you will see the following under the Restrictions heading: In the CSS file, all general classes should have a start with a sheet- prefix for Roll20 to read them. Give a shot with .sheet-Test1 in your css.

You are AWESOME Kraynic!!!!&nbsp; I have been messing with that for hours! lol Worked perfectly!

It looks like the wiki had an error there. I've replaced the style- mention with sheet- , for future readers.

Good luck going down the sheet creation rabbit hole!&nbsp;