#defaultCanvas0{
	position: fixed; /*canvasを固定*/
	top: 0; /*canvasを上に固定*/
}

body {
	font-family: "Helvetica Neue",
    Arial,
    "Hiragino Kaku Gothic ProN",
    "Hiragino Sans",
    Meiryo,
    sans-serif;
	
	display: flex;
	justify-content: center;
	align-items: center;
 
	min-height: 100vh;
}

.text-center {
	text-align: center;
}