* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    text-decoration-skip: ink;
}

body {
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-size: 16px;
    font-size: 1rem;

    line-height: 1.8;
    margin: 0 auto;
    color: #333;
    background: #fff;
    text-rendering: optimizeLegibility;
}

p {
	margin-bottom: 12px;
}

h1 {
	font-size: 32px;
    font-size: 1.6rem;    
    margin-top: 24px;
}

h2 {
    font-size: 24px;
    font-size: 1.5em;
    line-height: 2;
    margin-top: 1em;
    margin-bottom: .5em;
}

main, footer {
	display: grid;
	grid-template-columns: 1fr 480px 480px 1fr;
}

section {
	grid-column: 2 / span 2;
	padding: 0 16px;
	margin-bottom: 12px;
}

#controls {
	grid-column: 2 / span 1;
}

#preview {
	grid-column: 3 / span 1;
}

canvas { 
	width: 100%;
	border: 1px solid black; 
}

#controls label { 
	display: flex;
	justify-content: space-between; 
}