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

body {
    overflow: hidden;
    background: black;
}

.input {
    background: whitesmoke;
    border-radius: 10px;
    padding: 10px;
    position: absolute;
    width: 100%;
}

canvas {
    position: absolute;
    top: 0px;
    left: 0px;
}