body {
    font-family: -apple-system, BlinkMacSystemFont, sans-serif;
    text-align: center;
    margin: 0;
    padding: 40px;
    background: #76c4f1;
}

header {
    padding: 60px 20px;
}

h1 {
    font-size: 50px;
}

section {
    margin: 40px auto;
    max-width: 700px;
}

.app {
    background: white;
    padding: 20px;
    margin: 20px;
    border-radius: 20px;
}