style.css

html,
body {
	overscroll-behavior: none;
}
body {
	font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Ubuntu, "Helvetica Neue", sans-serif;
	margin: 0;
	line-height: 1.5;
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
	-webkit-text-size-adjust: 100%;
	background: #fbf9f6;
}
a {
	color: inherit;
}
#canvas {
	height: 96vh;
	width: 100%;
	max-width: 640px;
	overflow: hidden;
	box-sizing: border-box;
	margin: auto;
	flex-direction: column;
	justify-content: space-around;
}
#canvas svg {
	width: 100%;
}
#about {
	text-align: center;
	font-size: 1.2rem;
	line-height: 1.75;
	padding: 0rem 2rem 1rem;
	color: #2c3d51;
}
#about a {
	font-weight: 500;
}
#ball {
	transform: translateZ(0);
	animation: rot 2000ms infinite linear;
	animation-play-state: paused;
}
#ball.started {
	animation-play-state: running;
}
#play {
	cursor: pointer;
}
#finalscore,
#best {
	font-size: 70%;
	fill: #34495e;
}
#best {
	font-style: italic;
	font-size: 50%;
}
#tip {
	font-weight: 300;
	font-size: 18%;
	font-style: italic;
	padding: 0.5rem 2rem 0rem;
}
#shareBtn {
	background: #1d9bf0;
	color: #fff;
	width: 150px;
	text-align: center;
	text-decoration: none;
	border-radius: 2rem;
	padding: 0.3rem 1.5rem;
	margin: 1rem auto 0px;
	font-size: 1.25rem;
	display: block;
}
#shareBtn.hide {
	visibility: hidden;
}

@keyframes rot {
	from {
		transform: rotate(0deg) translate(40%) rotate(0deg);
	}
	to {
		transform: rotate(360deg) translate(40%) rotate(-360deg);
	}
}