*{font-family:-apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;margin:0;}
body {
    display: flex;
    height:100vh;
    align-items:center;
    justify-content:center;
    background-color: #222;
    margin:0;
    flex-direction: column;
    color:white;
    font-weight:300;
}

canvas {
    width: 1280px;
    height: 739px;
}
h1 {
    font-size:calc(20px + 3vw);
    margin: 20px;
    margin-top:0;
}

div {
    margin-top: 20vh;
}

.controls {
    position: fixed;
    padding:40px;
    margin:0;
    border-radius: 5px;
    color:white;
    transform: translateY(200px);
    display: block;
    opacity:0;
    background: rgba( 255, 255, 255, 0.05 );
box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
backdrop-filter: blur( 9px );
-webkit-backdrop-filter: blur( 9px );
border-radius: 10px;
border: 1px solid rgba( 255, 255, 255, 0.18 );
    transition: 0.5s;
    z-index: 100;
}
#overlay {
    position: fixed;
    top:0;left:0;right:0;bottom:0;
    backdrop-filter: blur(6px);
    background: rgba(0, 0, 0, 0.29);
    height:100vh;
    width:100vw;
    z-index: 10;
    margin:0;
    opacity:0;
    display: none;
    transition: 0.5s;
}
hr {
    margin: 10px;
    width: 80%;
}
p {
    margin: 10px;
    margin-left:0;
}

p#close {
    font-weight:600;
}