Hello Pavle,
The header image (of the desk with the pen and keyboard) changes depending on the computer you’re on. On one computer you will see the complete image on the homepage, but on another computer you don’t see the pen at all, just a little bit of the desk. On a mobile device the homepage image doesn’t show the complete image either (although the other pages of the website appear normal and show the entire header image). On a mobile device the menu turns into a drop down box which is partially over the logo. The google search console said that there were two mobile usability issues with the website: 1. text too small to read and 2. clickable elements are too close together. Although when I went to the website on my phone I didn’t encounter either of these issues.