body {
    font-family: Arial, sans-serif;
    margin: 20px;
}
form {
    margin-bottom: 20px;
}
.person-entry {
    margin-bottom: 10px;
}
canvas {
    border: 1px solid #ccc;
    display: block;
    margin: 20px auto;
}
.legend {
    text-align: center;
}
.legend button {
    margin: 5px;
    padding: 5px 10px;
}