Graphic doesn't look at all

I purchased the product last week, and i have a problem that the graphic doesn't look at all, there is a previous thread i read here on this forum with a css code that i pasted into my backend but it didn't work. Could you help?

It's been four weeks and there's no solution, there's no forecast for solving this problem!

I can already imagine that I lost my money from this purchase, with no return on the status to solve the problem, total disappointment with you!