HTMLify

* {
    padding: 0;
    margin: 0;
	box-sizing: border-box;
    font-family: 'sans';
}

@font-face {
    font-family: "sans";
    src: url(font/sans.ttf);
}

body {
	background-color: #19172e;
	display: flex;
	align-items: center;
	justify-content: center;
	min-height: 100vh;
	margin: 0;
}

h2{
    position: absolute;
    top: 0;
    color: white;
    text-align: center;
    padding-top: 100px;
}

.container {
	background-color: #2c3e50;
	border-radius: 50px;
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: space-around;
	padding: 15px 0;
	height: 200px;
	width: 70px;
}

.circle {
	background-color: rgba(0, 0, 0, 0.3);
	border-radius: 100%;
	position: relative;
	height: 40px;
	width: 40px;
}

.circle.red {
	background-color: #c0392b;
	box-shadow: 0 0 20px 5px #c0392b;
}

.circle.yellow {
	background-color: #f1c40f;
	box-shadow: 0 0 20px 5px #f1c40f;
}

.circle.green {
	background-color: #2ecc71;
	box-shadow: 0 0 20px 5px #2ecc71;
}

footer {
    text-align: center;
    color: white;
    font-size: 1rem;
    position: absolute;
    bottom: 0;
    margin-bottom: 0;
    padding: 5px;
    line-height: 3vh;
}

footer a:visited {
    color: inherit;
}