I need advice on what program to use to create an opening animation for a webpage that looks similar to this: http://melaniedaveid.com/
I am most familiar with adobe illustrator and am not familiar with coding. I'm wondering if creating the animation as a gif in illustrator would be the way to go? I want to be sure that it isn't going to be an issue with the webpage loading.
What program would be best for a beginner to use to illustrate an animation and what format for a webpage?