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

#canvas1
{
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(#ffc443, #c67482);
}

.generate-tree-button{
    cursor:pointer;
    outline:none;
    border:none;
    position: absolute;
    left: 0;
    bottom:5%;
    left:50%;
    z-index: 10;
    transform: translate(-50%, 0);
    padding: 20px 30px;
    border-radius: 50px;
    background: saddlebrown;
    color: navy;
    font-size: 20px;
    width: 300px;
    overflow: hidden;
}