body {
    font-family: 'Arial', sans-serif;
    background-color: #f4f4f4;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.todo-container {
    background: #fff;
    padding: 20px;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    width: 300px;
    text-align: center;
}

h1 {
    margin-bottom: 20px;
}

.input-container {
    display: flex;
    justify-content: space-between;
    margin-bottom: 20px;
}

input[type="text"] {
    width: 70%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
}

button {
    width: 25%;
    padding: 10px;
    background-color: #5cb85c;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

button:hover {
    background-color: #4cae4c;
}

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

li {
    background: #f9f9f9;
    margin-bottom: 10px;
    padding: 10px;
    border-radius: 5px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

li.completed {
    text-decoration: line-through;
    color: #888;
}

button.delete-btn {
    background-color: #d9534f;
    cursor: pointer;
}

button.delete-btn:hover {
    background-color: #c9302c;
}