style.css

*{
    margin: 0;
    padding: 0;
}
canvas{
    position: absolute;
    border: 1px solid black;
    top: 10px;
    left: 10px;
    background-color:white;

}
body{
    background-color: aquamarine;
}
#buttons{
    width: 200px;
    height: 150px;
    background-color: black;
    position:absolute;
    opacity: 0.3;
    bottom: -120px;
    right:-130px;
}
#up{
    display: block;
    width: 60px;
    height: 50px;
    background-color: white;
    position:relative;
    opacity: 1;
    bottom: 0;
    left: 35%;
    text-align: center;
    color: red;
    font-size: 2rem;
    font-weight: 700;
}
#right{
    display: block;
    width: 60px;
    height: 50px;
    background-color: white;
    position:relative;
    opacity: 1;
    bottom: 50px;
    left: 68%;
    text-align: center;
    color: red;
    font-size: 2rem;
    font-weight: 700;
}
#left{
    display: block;
    width: 60px;
    height: 50px;
    background-color: white;
    position:relative;
    opacity: 1;
    bottom: 0;
    left: 3%;
    text-align: center;
    color: red;
    font-size: 2rem;
    font-weight: 700;
}