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

header {
    background-color: #333;
    color: #86F659;
    padding: 1rem;
    text-align: center;
}

nav {
    background-color: #444;
    color: #86F659;
    padding: 0.5rem;
}

nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    margin: 0;
    padding: 0;
}

nav li {
    margin: 0 1rem;
}

nav a {
    color:#86F659 ;
    text-decoration: none;
}

main {
    padding: 2rem;
}
footer {
            background-color: #333;
            color: #86F659;
            padding: 10px;
            text-align: center;
}
section {
    border: 1px solid #ccc;
    padding: 2rem;
    margin: 2rem 0;
}

h2 span {
    font-weight: bold;
    font-size: 1.2em;
    margin-right: 0.5em;
}