body {
    box-sizing: border-box;
    margin: 0;
    padding: 2rem 0;
    background-color: #102040;
    color: white;
    font-family: sans-serif;
}

a {
    text-decoration: none;
    border-bottom: 0.15rem dashed black;
    color: black;
}

h1, h2, h3, h4 {
    margin: 0;
    color: white;
    text-align: center;
    font-variant: small-caps;
    border-top: 0.3rem dashed #eee;
    border-bottom: 0.3rem dashed #eee;
    box-shadow: 0 -2rem #ef8, 0 2rem #ef8;
}

h1 {
    font-size: 3.5rem;
    line-height: 3rem;
    text-shadow: -1px -1px black,
                 1px -1px black,
                 -1px 1px black,
                 1px 1px black;
}

h2 {
    font-size: 3rem;
    line-height: 3rem;
}

.float-right {
    float: right;
    max-width: 6rem;
}
.float-left {
    float: left;
    max-width: 6rem;
}

article {
    max-width: 60rem;
    margin: 4rem auto;
    padding: 1rem 2rem;
    background-color: #eee;
    color: #112;
}
.columns {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 2rem;
}

footer p {
    text-align: center;
    margin: 8rem auto 0;
}
footer p a {
    color: #ef8;
    border-bottom: 0.15rem dashed #eee;
}