Text color is different in tablet and mobile pages.

Dear WPMU DEV team,

I do not know how I did it but it is strange. I went into responsive mode and wanted to edit the order of objects for tablets and mobile devices. The text that is displayed in black on the normal desktop page has a different color in mobile and tablet mode. I am unable to change the color back to black in tablet mode. Please watch the video to understand what happened.
This is happening only on one page.


Thank you for helping me.

kind regards,