body, html {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
}

.navbar {
    overflow: hidden;
    background-color: #333;
}

.navbar a {
    float: left;
    display: block;
    color: #f2f2f2;
    text-align: center;
    padding: 14px 20px;
    text-decoration: none;
    font-size: 17px;
}

.navbar a:hover {
    background-color: #ddd;
    color: black;
}

.tabcontent {
    display: none;
    padding: 20px 0;
    margin: 0 20px;
}

h2 {
    color: #333;
}

p {
    color: #666;
}