Coloring has changed...?

Hello, I am a complete newbie to coding. I am starting with HTML and CSS. I started working on a website for my wife. When I opened saved files today and begin to work i noticed that what I typed after an attribute within quotes is no longer green EXAMPLE:

  • Home
  • ... Before today anything in quotes was green and now it is just gray. What I am doing seems to be write because it pops up in a browser as i hope. I wonder if I am doing something wrong though because its not green. It was nice confirmation prior to looking at the browser. It is currently saved as an HTML. Anyone have suggestions?

    thank you.