Thank you all for the great help on this forum and the interesting topics, I really learned a lot so far.
With this knowledge I started designing a website in Illustrator, I based the shapes on the artboard which is for Web standard. Now when I export the image (PNG) to add to Wix (https://www.wix.com/) The image automatically reshapes, and I have a hard time on getting consistent outlines on each page. Meaning that the size is slightly different on each page.
How do you convert your mockups to a working product?
Thank in advance!