ul {
    list-style-type: none;
    padding: 0;
    margin: 0 auto;
    max-width: 600px;
}

li {
    background-color: rgb(255, 255, 255);
    border-radius: 8px;
    border: 1px solid #ccc;
    padding: 8px;
    margin-bottom: 6px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

li:hover {
    background-color: rgb(255, 255, 255);
}

.copied-message {
    color: #007BFF;
    margin: 0px 0 -3px 0;
}