h1 {
	color:red;
}

button{
	font-size:24px;
}

canvas{
	border: 4px solid #FF1133;
	background-color: #000000;
	
}

body {
  background-image: radial-gradient(red, blue, purple);
  /*https://www.w3schools.com/cssref/pr_background-image.asp*/
}