My portfolio. Help with responsiveness

Hi guys,

Here it is - https://codepen.io/konstantin78/full/XZXLvo/.
Not my design - I just liked it and trying to recreate it.

I think there is some collision between bootstrap 3 and 4.
And I think my code is a bit messy but I’ll appreciate some feedback and ideas

  1. How to make an image appear over image?
  2. How to arrange my buttons?
  3. The small icons, explode when I shrink the browser.

Thank You

You are right. You should only be using one version or the other. Pick one and stick to the syntax of it.

Thank you for the tip!