body {
    margin: 0;
    font-family: Arial, sans-serif;
}

header {
    background-color: #f0f0f0;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

nav a {
    margin-left: 15px;
    text-decoration: none;
    color: #333;
}

#canvas {
    min-height: 60vh;
    padding: 20px;
}

footer {
    background-color: #333;
    color: white;
    text-align: center;
    padding: 10px;
    position: relative;
    bottom: 0;
    width: 100%;
}