@import url('https://fonts.googleapis.com/css2?family=Fira+Sans:wght@200&display=swap');

body {
    background: #ddd;
    color: #1a1a1a;
    font-family: 'Fira Sans', sans-serif;
    font-style: normal;
    font-weight: 200;
}

a {
    color: navy;
}

section {
    margin: auto;
    max-width: 800px;
}

.center {
    text-align: center;
}

.d1 {
    font-size:36px;
}