Website/components/trianglesbg.js

import { useState, useEffect } from "react"

export default function TrianglesBG() {
    const [positionX, setPositionX] = useState(0);
    // use setPositionX(123) to set the background-position-x to 123
    useEffect(() => {
        const interval = setInterval(() => {
            // do magic here using setPositionX
            setPositionX(positionX + 1);
        }, 10);
        return () => clearInterval(interval);
    });
    return (
        <div style={{width: '100vw', height: '100vh', position: 'absolute', top: '0', left: '0', zIndex: '0', color: 'white'}} className="steve">
            <div className="whatIsItso that means the proxy (that im about to )LikeInsideSteve" width='100%' height='99%' style={{objectFit: 'fill', imageRendering: 'pixelated', backgroundImage: 'url("/background.webp")', width: '100%', height: '100%', backgroundRepeat: 'repeat', backgroundSize: '100vw', backgroundPositionX: positionX}}/>
        </div>
    )
}