JSFiddle - React, Tailwind, and code Playground

HTML

<canvas id="ball-canvas" width="900" height="600"></canvas>

JavaScript

var canvas = document.getElementById('ball-canvas');
            var context = canvas.getContext('2d')
            var radius  = 50;
            var strokewidth = 2;
            var strokestyle = '#666';
            var frameCount=0;
            var w = canvas.width;
            var h = canvas.height;
		
			// Circle Objects
			var yellowCircle ={
			  x:50,
			  y:h / 2,
			  radius:radius,
			  color:'yellow',
			}
			
			var redCircle ={
			  x:450,
			  y:h / 2,
			  radius:radius,
			  color:'red',
			}
			
			var blueCircle ={
			  x:850,
			  y:h / 2,
			  radius:radius,
			  color:'blue',
			}
			
			// Create empty array and then push cirlce objects into array
			var circles=[];
			circles.push(yellowCircle, blueCircle, redCircle);
			
			// Clear last circle and draw again
			function draw() {
			context.clearRect(0,0,canvas.width, canvas.height); // Clear the circle from the from page
			  for(var i=0;i<circles.length;i++){
			    var c=circles[i];
			    context.beginPath();
			    context.fillStyle=c.color // Set the color of the circle using key:valuecontext.fill();
			    context.lineWidth=strokewidth;
			    context.strokeStyle=strokestyle;
			    context.stroke();
			    context.arc(c.x,c.y,c.radius,0,Math.PI*2); // X-axis Position, y-axis Position, radius, % of fill, ?
			    context.closePath();
			    context.fill();
		       }
			}
			
			function animate(){
				
                // Yellow Circle
                circles[0].x+=1;
                circles[0].y+=-1.5;

                // Blue Cirlce
                circles[1].x+=-1;
                circles[1].y+=-1.5;

                // Red Circle
                circles[2].x+=1;
                circles[2].y+=-1;
                draw();
               
              }
			

            var canvas = document.getElementById('ball-canvas');
            var context = canvas.getContext('2d')
            var radius  = 50;
			
	

			setInterval(animate, 40);