Ionic Vue CSS removed after x seconds

I have an ionic vue project that makes use of normal css files, which I import in my main.js. However, when I use “ionic serve” and then reload my webpage, it looks good for a split second and then removes the stylling.

The look it should have but only has for a split second: Imgur: The magic of the Internet

The look it has after the split second: Imgur: The magic of the Internet

I don’t have this error on my phone when checking out the dev server, so it might be related to my desktop, however, I would like to fix it on my desktop.

Update: This does also happen on other pages:

leading me to beleive that this is a browser issue. I am using Chrome on Manjaro.

this is alot easier to debug if you put it in a stackblitz project