Why isn't this code working?

Question

https://code.sololearn.com/W2TMjUv1Jnv1/?ref=app

Answer 1

The color is not appearing.

Answer 2

You added code from a website (email, etc) that embeds   (non-breaking spaces) and that stops CSS processing.

Go to: http://www.asciitohex.com
paste your CSS. Tap [Convert]. Scroll down to "HTML Entities"

Though I reported this a while ago as a possible bug, it's code you aren't retyping. To fix this, you have to wipe out all of them and use normal whitespace.

Answer 3

Q&A test...confirmed. The first CSS has embedded   -- I deleted the whitespace by hand and typed 4 spaces. You can copy this post's text to confirm.

********** Broken CSS
th {
    background-color: #A7C942;
    color: #ffffff;
}

********** Working CSS
th {
background-color: #A7C942;
color: #ffffff;
}

Answer 4

What's the problem? Seems to work for me.