style.css

html, body {
    display: flex;
    flex: 1 1 1px;
    flex-direction: column;
    gap: 1rem;
    align-items: center;
    font-size: 14px;
    font-family: 'Lato';
    font-weight: 100;
    background: #2a2a2e;
}
* {
    margin: 0;
    padding: 0;
}
body { padding: .5rem 0 }
@media (min-width:600px)  {
    body { padding-top: 2rem }
}
p, h1, h2, h3, li, u, div { font-size: 1rem }
h1 { text-transform: uppercase }
h1:not(:first-of-type) { margin-top: 1rem }
h2 { margin: 0 }
h1:first-of-type, h1:first-of-type u { font-size: 1.15rem; font-weight: 600; }
ol {
    margin-top: 1rem;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}
h1 + * { margin-top: .2rem }
ol li {
    margin: 0;
    list-style: none;
    font-weight: 800;
    align-self: center;
    white-space: nowrap;
}
ol:first-of-type {
    justify-content: center;
    flex-direction: column;
    margin-bottom: .5rem;
}
ol:first-of-type li {
    display: flex;
    gap: .3rem;
    font-weight: 100;
    align-items: center;
}
@media print, (min-width:600px)  {
    ol:first-of-type {
        flex-direction: row;
        gap: 1.5rem;
        margin: .4rem 0;
    }
}
h3 { font-style: italic; margin: 0; font-weight: 500 }
ul + h2 { margin-top: .8rem }
ul + h3 { margin-top: .6rem }
li { margin-left: 1.7rem; line-height: 1.35rem; }
h1:first-of-type, h2:first-of-type { text-align: center; }
h1:not(:first-of-type) {
    border-bottom: #555 1px solid;
}
main {
    width: 57rem;
    max-width: 96vw;
    background: #fff;
    border-radius: .4rem;
}
article { padding: 1rem }
@media (min-width:600px) {
    article { padding: 3.5rem }
}
a { color: inherit; text-decoration: none; }
a.button {
    border-radius: .3rem;
    margin: 1rem;
    font-size: 1.2rem;
    border: none;
    outline: none;
    padding: 1rem;
    background: #4c7cb2;
    color: #fff;
    font-weight: 600;
    white-space: nowrap;
    display: flex;
    gap: .8rem;
}
@media print {
    body { background: #fff }
    article { padding: 2rem }
    a.button { display: none }
}