body, h1, h2, p, ul, li, table, th, td {
    margin: 0;
    padding: 0;
}

body {
    font-family: Arial, sans-serif;
    background-color: #f0f0f0;
    margin: 20px;
}

h1 {
    text-align: center;
    margin-bottom: 20px;
}

form {
    text-align: center;
    margin-bottom: 20px;
}

label {
    font-weight: bold;
}

input[type="text"] {
    width: 200px;
    padding: 5px;
    border: 1px solid #ccc;
    border-radius: 5px;
}

input[type="submit"] {
    background-color: #007BFF;
    color: #fff;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
}

input[type="submit"]:hover {
    background-color: #0056b3;
}

table {
    width: 100%;
    border-collapse: collapse;
    background-color: #fff;
    border: 1px solid #ccc;
    box-shadow: 0 2px 2px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
}

table caption {
    text-align: center;
    font-weight: bold;
    background-color: #007BFF;
    color: #fff;
    padding: 10px;
}

table th, table td {
    padding: 10px;
    text-align: left;
    border-bottom: 1px solid #ccc;
}

table th {
    background-color: #007BFF;
    color: #fff;
}

table tr:hover {
    background-color: #f5f5f5;
}

ul {
    list-style: none;
    text-align: center;
    margin-top: 20px;
}

ul li {
    display: inline;
    margin-right: 10px;
}

ul li a {
    text-decoration: none;
    padding: 5px 10px;
    border: 1px solid #007BFF;
    border-radius: 5px;
    color: #007BFF;
}

ul li a.active {
    background-color: #007BFF;
    color: #fff;
}

div {
    text-align: center;
    margin-top: 20px;
}

a {
    color: #007BFF;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}