I really need someone to help me. I just can't delete the grey table background. I have tried everything, I can't change it in general and in HTML. I tried to search the color but I can't delete it. Also I installed an other theme but it keeps grey.
( I want it to be white), and yes I'm on trial plan but will buy later on of course..
https://imgur.com/a/gEu9I (How it is)
Thanks in advance!