style.css

@import url('https://fonts.googleapis.com/css?family=Pacifico');

video, canvas {
    display: block;
    margin: 0 auto;
	position: absolute;
	left: 50%;
	margin-left: -250px;
}

body {
    background-color: navy;
    font-family: 'Pacifico', cursive, sans-serif;
    color: white;
    display: block;
}

h1 {
    font-size: 70px;
    margin: -10px;
}

video {
    border: 5px solid white;
}

button {
	padding: 10px 10px;
    margin: 0px 10px 10px 0px;
    border-radius: 5px;
    font-size: 25px;
    background-color: #ff99cc;
    border-bottom: 5px solid #ff66b3;    
	color: white;
	text-decoration: none;	    
}

button:active {
	transform: translate(0px,5px);
	border-bottom: 1px solid;
}

.container {
    display: grid;
    grid-row-gap: 10px;
    grid-template-columns: 1fr;
    text-align: center;
}

@media (max-width: 800px) {
    h1 {
        font-size: 50px;
    }
}

@media (max-width: 550px) {
    h1 {
        font-size: 30px;
    }
}