* {
    margin: 0;
    padding: 0;
}

h1,h2 {
    color: white;
    margin: 0 auto;
}

label {
    color: white;
}

body {
    background-color: black;
    text-align: center;
}

#canvas {
    border: 10px solid grey;
    line-height: 0;
    color: sandybrown;
    display: inline-block;
    
}

.node {
    display: inline-block;
    margin: 0;
    cursor: pointer;
    
}

#return {
    color: red;
    
}