Site responsive and position element

Hello guys can anyone kindly lend me help here. Am done with my html and css but i found out my product page site wasnt responsive to my mobile phone. please guys help

Hello there!

Edit: My apologies! I used the wrong test suite ><

It looks a lot like a sample project by FCC that is just an example.
I’d suggest to check for other examples of product landing pages: https://www.google.com/search?q=product+landing+page+examples&tbm=isch&ved=2ahUKEwif3M_thuH2AhWYxuAKHTUUD4sQ2-cCegQIABAA&oq=produ+page+examples&gs_lcp=CgNpbWcQARgAMgYIABAHEB4yBggAEAcQHjIGCAAQBxAeMgYIABAHEB4yBggAEAcQHjIICAAQBxAFEB4yCAgAEAcQBRAeMggIABAHEAUQHjIICAAQBxAFEB4yCAgAEAcQBRAeOgcIIxDvAxAnOgYIABAIEB5QxwVYiwpgkRVoAHAAeACAAWyIAe4DkgEDNS4xmAEAoAEBqgELZ3dzLXdpei1pbWfAAQE&sclient=img&ei=Ypk9Yp-jEZiNgwe1qLzYCA&bih=760&biw=1536

For responsiveness use media queries and flexbox/grid for items positioning

Hi @neslon,

Did you already hear about media queries? Or it tells you nothing?