If I understand correctly, you're facing an issue with a non-responsive form on a page of your website when viewed on mobile devices. While I'm not sure what code you're currently using, I can suggest some general tips to make forms more mobile-friendly:
Use responsive design...
To colorize the div with the class show-display and the value of 20, you can use the following CSS code:
This code will select any div element with a class of show-display that contains the text "20", and apply the color red to it...