* {
    margin: 0px;
}

html {
    background-color: #272736;
}

canvas {
    position: absolute;
    height: 100%;
    width: 100%;
}

h1 {
    position: fixed;
    font-family: sans-serif;
    font-size: 6vw;
    color: #fff;
    z-index: 1;
    text-align: center;
    width: 100%;
    margin-top: 1vw;
    text-shadow: 0.3vw 0.2vw 0.1vw #000;
}

.menu {
    position: fixed;
    z-index: 10;
    display: block;
    width: 10vw;
    text-align: center;
    background-color: #fff;
    border-radius: 1vw;
    padding: 0.5vw;
    margin: 1vw
}

.menu .slider {
    font-family: sans-serif;
    font-size: 1.1em;
    line-height: 2em;
    display: block;
}

.menu .slider input {
    width: 100%;
}