body {
    font-family: Arial, sans-serif;
    background-color: #f5f5f5;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.container {
    background-color: #fff;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    width: 300px;
}

form {
    display: flex;
    gap: 0.5rem;
}

input {
    flex: 1;
    padding: 0.5rem;
}

button {
    padding: 0.5rem 1rem;
}

ul {
    list-style: none;
    padding: 0;
    margin-top: 1rem;
}

li {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 0;
    border-bottom: 1px solid #ddd;
}

li button {
    background: red;
    color: white;
    border: none;
    padding: 0.2rem 0.5rem;
    cursor: pointer;
}