body {
    font-family: Arial, sans-serif;
    display: flex;
    flex-direction: column;
    align-items: center;
    background-color: #f4f4f4;
}

h1 {
    margin-top: 20px;
}

.kanban-board {
    display: flex;
    justify-content: space-around;
    width: 80%;
    margin-top: 20px;
}

.column {
    background-color: #ffffff;
    border-radius: 5px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    padding: 20px;
    width: 30%;
    min-height: 400px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.task-list {
    width: 100%;
    min-height: 300px;
    margin-bottom: 10px;
}

.task {
    background-color: #e0e0e0;
    border-radius: 3px;
    padding: 10px;
    margin: 5px 0;
    cursor: pointer;
}

input[type="text"] {
    padding: 5px;
    width: 100%;
    box-sizing: border-box;
    margin-bottom: 10px;
}

button {
    padding: 5px 10px;
    cursor: pointer;
    background-color: #007bff;
    color: #ffffff;
    border: none;
    border-radius: 3px;
}