Help with background of font color not matching the background color of the whole care

How do I make the white color behind the font match the background color of the card?

The text was probably copied and pasted from a source that used those colors. You can paste while holding down the shift key to strip formatting; to fix your existing cards, you’ll need to view the HTML source and then use find&replace.

this worked. Thank you. Not sure why 1/2 of my cards did and the others didn’t since all were copied and pasted from a google doc…