One way to do it is to wrap everything in a div called .page-content-wrap or just .main, and display none until the animation is completed, then back to display block.
Wow. Works like magic!
Now that I look at it, it makes so much sense. At that time, it just didn’t occur to me. I guess that’s part and parcel of Webflow, isn’t it?
Thank you so much! For this, and for the rest of the help that you provided me without knowing (through other forum questions).