canvas {
    box-shadow: 0 0 5px black;
} 

.canvas {
    margin: 0 auto;
    width: 900px;
    display: flex;
    justify-content: center;
}

body {
    background-image: linear-gradient(270deg, #31fa81 0%, #a939ff 100%);
}

.wrapper {
    width: 900px;
    margin: 0 auto;
    display: flex;
    justify-content: space-around;
    align-items: center;
    font-family: Arial;
    font-size: 30px;
    font-weight: 700;
    color: white;
}

.control {
    width: 900px;
    margin: 0 auto;
    display: flex;
    justify-content: center;
    align-items: center;
}

.btn {
    font-size: 30px;
}