I'm having trouble styling ID's in the challenges

Started recently, got to the “responsive web design projects” where I have to build a couple of pages in codepen. Although when I try to use the styling for ID’s it simply doesn’t work in the CSS for me (it works in HTML tho). Tried switching browsers but that doesn’t help. Am I doing something wrong?

My very basic code:

#title { color: green; text-align: center; }

Survey for a million dollars

Please provide a link to your pen


Here it is

  • Your html tags should all be in the HTML section of CodePen.
  • You should not add style tags to the CSS section of CodePen.