Why this code dont work?

Question

help me pls

https://code.sololearn.com/WddNuBeS9mmP/?ref=app

Answer 1

onload = function() {
pos = 0;
c = document.getElementById('circle');
c.style.position = "absolute";
t = setInterval(animate, 10);

function animate() {
if (pos >= 250) {
clearInterval(t);
} else {
pos++;
c.style.left = pos + 'px';
}
}

};

Answer 2

im understood!!!! my circle was without position!!!!

Answer 3

thanks