app/javascript/components/UI/Loader.js
import React from "react";
import {ColorRing} from "react-loader-spinner";
const Loader = () => {
const centeredStyle = {
position: 'fixed',
top: '50%',
left: '50%',
transform: 'translate(-50%, -50%)'
};
return <div style={centeredStyle}>
<ColorRing />
</div>
}
export default Loader