body {    font-family: Arial, sans-serif;    line-height: 1.6;    margin: 0;    padding: 0;    background-color: #f4f4f9;    color: #333;}.container {    width: 80%;    margin: auto;    overflow: hidden;    padding: 20px 0;}header {    background: #333;    color: #fff;    padding-top: 30px;    min-height: 70px;    border-bottom: #0779e4 3px solid;}header a {    color: #fff;    text-decoration: none;    text-transform: uppercase;    font-size: 16px;}header ul {    padding: 0;    list-style: none;}header li {    display: inline;    padding: 0 20px 0 20px;}header #branding {    float: left;}header nav {    float: right;    margin-top: 10px;}.main-content {    padding: 20px;    background: #fff;    border-radius: 5px;    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);}h1, h2, h3 {    color: #333;    border-bottom: 2px solid #eee;    padding-bottom: 5px;}form label {    display: block;    margin-top: 10px;    font-weight: bold;}form input[type="text"], form input[type="email"], form select {    width: 100%;    padding: 8px;    margin-top: 5px;    margin-bottom: 10px;    border: 1px solid #ccc;    border-radius: 4px;    box-sizing: border-box;}button {    background: #0779e4;    color: #fff;    padding: 10px 15px;    border: none;    border-radius: 4px;    cursor: pointer;    font-size: 16px;    margin-top: 10px;}button:hover {    background: #055aab;}textarea {    width: 100%;    height: 400px;    padding: 10px;    box-sizing: border-box;    border: 1px solid #ccc;    border-radius: 4px;    font-family: monospace;    white-space: pre;    overflow-wrap: normal;    overflow-x: scroll;}.warning {    color: #a94442;    background-color: #f2dede;    border: 1px solid #ebccd1;    padding: 15px;    border-radius: 4px;    margin-bottom: 20px;}