style.css

body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    height: 100vh;
    background-image: linear-gradient(to bottom right, #000000, #0084b0ab);
}
.container {
    margin: 0 auto;
    padding: 20px;
}
h1, h3 {
    text-align: center;
}
label {
    display: none;
}
input[type="text"] {
    width: 100%;
    padding: 8px;
    box-sizing: border-box;
    text-align: c;
}
input {
    text-align: center;
    padding: 10px;
}
button {
    width: 100%;
    padding: 8px;
    background-color: #007BFF;
    color: #FFF;
    border: none;
    cursor: pointer;
    margin-top: 10px;
}
button#edit-btn, button#del-btn, button#done-btn{
    width: 5rem;
}
button:hover {
    background-color: #0056B3;
}
span {
    justify-content: center;
}
ul {
    list-style-type: none;
    padding: 0;
}
li {
    background-color: #f2f2f2;
    padding: 10px;
    margin-bottom: 5px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
li button {
    background-color: #007BFF;
    color: #FFF;
    border: none;
    cursor: pointer;
    margin-left: 10px;
    padding: 10px 10px;
    margin-top: 0;
    margin-bottom: 0;
}
li button:hover {
    background-color: #0056B3;
}