/* Element name selectors */
body {
    font-family: Arial, Helvetica, sans-serif;
    margin: 0;
    background-color: #f4f4f4;
    color: #222222;
}

h2 {
    color: #8b0000;
}

a {
    color: #b22222;
}

footer {
    text-align: center;
    padding: 15px;
    background-color: #222222;
    color: white;
}

/* Class name selectors */
.subtitle {
    font-size: 18px;
    font-style: italic;
}

.content-section {
    background-color: white;
    margin: 20px auto;
    padding: 20px;
    max-width: 800px;
    border-radius: 8px;
}

/* ID selectors */
#page-header {
    background-color: #8b0000;
    color: white;
    text-align: center;
    padding: 30px;
}

#tree-image {
    display: block;
    max-width: 500px;
    width: 100%;
    margin: 20px auto;
    border: 2px solid #222222;
    border-radius: 5px;
}