body {
    margin: 0 auto;
    max-width: 85ch;
    padding: 3%;
    background-color: #F9FAFB;
}

h1 {
    text-align: center;
    margin-top: -1%;
    margin-bottom: 5%;
    border-bottom: 1px solid lightgray;
    font-size: 3rem;
}

h1>a {
    text-decoration: none;
    color: black;
}

.banner {
    text-align: center;
    margin-bottom: 5%;
}

ul {
    line-height: 1.2;
    margin-top: 1%;
}

ol {
    line-height: 1.5;
    margin-top: 1%;
}

h2 {
    margin-bottom: 1%;
}

h3 {
    margin-bottom: 1%;
}

footer {
    text-align: center;
    margin-top: 2rem;
}