body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe WPC', 'Segoe UI', system-ui, 'Ubuntu', 'Droid Sans', sans-serif;
    margin: 0;
    padding: 0;
}

header {
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 20px;
}

section {
    padding: 20px;
}

.intro-image {
    float: right;
    margin-left: 20px;
    max-width: 300px;
    height: auto;
}

.intro p:first-of-type {
    margin-top: 50px;
    margin-bottom: 20px;
}

.text-block {
    margin-bottom: 15px;
    margin-top: 15px;
}

p, img {
    margin: 0 20px;
    margin-left: 50px;
    margin-right: 50px;
}

h2 {
    margin-left: 30px;
    margin-right: 30px;
}

footer {
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 10px;
    position: fixed;
    bottom: 0;
    width: 100%;
}