body {
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    margin: 0;
    padding: 0;
}

.kanban-board {
    display: flex;
    gap: 20px;
}

.column {
    width: 300px;
    background-color: #f4f4f4;
    border: 1px solid #ccc;
    border-radius: 5px;
    padding: 10px;
}

.column h3 {
    text-align: center;
}

.card {
    background-color: #fff;
    border: 1px solid #ddd;
    border-radius: 3px;
    padding: 10px;
    margin: 10px 0;
    cursor: move;
}