:root {
    background-color: black;
    color: hsl(0 0 60);
    font-size: 20px;
    line-height: 1.2;
    font-size-adjust: 0.5;
    font-family: sans-serif;
    text-align: center;
}

* {
	box-sizing: border-box;
	margin: 0;
	padding: 0;
}

.screen {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.screen[hidden] {display:none;}