body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f5f5f5;
    background-color: #888;
}

.container {
    max-width: 650px;
    margin: 0 auto;
    padding: 20px;
    background-color: #fff;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    background-color: #ddd;
}

h1 {
    text-align: center;
    margin-bottom: 20px;
}

form {
    display: flex;
    margin-bottom: 20px;
}

input[type="text"] {
    flex: 1;
    padding: 10px;
    margin-right: 10px;
    font-size: 16px;
    border: none;
    border-radius: 3px;
}

button {
    padding: 10px 20px;
    font-size: 16px;
    background-color: #4caf50;
    color: #fff;
    border: none;
    border-radius: 3px;
    cursor: pointer;
}

button.btn-done {
    background-color: #4caf50;
}

button.btn-done.active {
    background-color: #888;
}

ul {
    list-style-type: none;
    padding: 0;
}

li {
    display: flex;
    align-items: center;
    padding: 10px;
    border-bottom: 1px solid #888;
}

li:last-child {
    border-bottom: none;
}

.todo-text {
    flex: 1;
    text-decoration: none;
}

.todo-text.done {
    text-decoration: line-through;
    color: #888;
}

.todo-actions {
    margin-left: 10px;
}

.todo-actions button {
    margin-right: 5px;
}