* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
    font-family: 'Times New Roman', Times, serif;
}

h1 {
    text-align: center;
    padding: 40px;
    color: lightblue;
    background-color: black;
}

.container {
    text-align: center;
    padding: 40px;
}

li {
    list-style: none;
    padding: 10px;
    font-size: 30px;
    color: blueviolet;
}

input {
    height: 25px;
    color: green;
}

button {
    padding: 5px;
    border-radius: 5px;
    cursor: pointer;
    color: white;
    background-color: black;
}

#add-btn {
    margin-left: 10px;
}

.delete-btn {
    margin-left: 20px;
}

.edit-btn {
    margin-left: 10px;
}