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

/* Page background */
body {
	height: 100vh;
	background: radial-gradient(circle at top, #0f2023, #000000);
}

/* Digital clock container */
#digital-clock {
	width: 80%;
	height: 100px;
	font-size: 3.5rem;
	margin: 0 auto;
	letter-spacing: 0.2rem;
	text-align: center;
	line-height: 100px;
	color: #00ffff;
	background: rgba(0, 0, 0, 0.4);
	border: 2px solid #00ffff;
	border-radius: 10px;
	position: relative;
	top: 40%;
	text-shadow:
		0 0 5px #00ffff,
		0 0 10px #00ffff,
		0 0 20px #00ffff,
		0 0 40px #00ffff;	
}