This is an example from Google Adsense application page. The loading screen displayed before the main page showed after.
I don\'t know how to do the same th
What about using Pace
Use this link address here.
https://github.hubspot.com/pace/docs/welcome/
1.On their website select the style you want and paste in index.css
2.go to cdnjs Copy the link for Pace Js and add to your script tags in public/index.html
3.It automatically detect web loads and displays the pace at the browser Top.
You can also modify the height and animation in the css also.