In a project where OL is being used along with Tailwind (v3), we noticed that our skeleton animations mysteriously stopped working. Eventually we discovered that ol-ext was loading a CSS file which incidentally redefined the pulse keyframes animation. Since neither tailwind or ol-ext keyframes definitions were prefixed, whichever one loads later takes precedence.

This could be fixed from either end, but it would be a breaking change at tailwind. It can also be solved with patch-package, or redefining the tailwind animation and using that instead.