Subtle flow animations

Hello, I wonder if (and if yes: how) it is possible with Editor X to build a subtle, flowing animation like on this website:

To be precise, I mean these animations:

  • circle on the top right and bottom left corner of the “snag your free spot” form
  • floating colorful background sections (blue/turquoise) below the “snag your free spot” form

If this is not possible in Editor X, is there a way to achieve this in the classic Wix editor?