.controls{display:grid;grid-template-columns:repeat(3,1fr);gap:.7rem}canvas{display:block;max-width:100%;max-height:30rem;margin:1rem auto;background:repeating-conic-gradient(#ddd 0 25%,#fff 0 50%) 50%/20px 20px}@media(max-width:42rem){.controls{grid-template-columns:1fr}}