Page load animations

I’m curious how people incorporate page load animations into their sites? So, as a site is being loaded, some have the spinning circle icon or the vertical bars that sort of dance across (I know that is a terrible description). Are they generally part of a theme or a CSS snippet? A stack?

They’re generally called ‘preloaders’ and are sometimes built into themes. If not, there are several stacks out there, one of which is coincidentally called Preloader Stack, from Stellar Stacks.

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