body {
    font-family: Arial, sans-serif;
    padding: 20px;
    background: #f4f4f4;
}

h2 {
    color: #333;
}

input,
button {
    padding: 10px;
    margin: 5px 0;
    width: 100%;
    box-sizing: border-box;
}

.bookmark {
    background: white;
    margin: 10px 0;
    padding: 10px;
    border-left: 4px solid #3498db;
}

.bookmark a {
    text-decoration: none;
    color: #3498db;
    font-weight: bold;
}