html {
    background-color: #eee;
    padding: 0 calc(40% - 18rem);
}

body {
    background-color: #fff;
    min-height: 100vh;
    padding: 0 2rem;
}

header {
    /* https://shanabrian.com/web/html-css-js-technics/css-over-margin.php */
    overflow: hidden;
}

footer {
    overflow: hidden;
    color: #ccc;
    text-align: center;
}

a {
    color: #000;
    text-decoration: underline;
}

a:hover {
    color: orangered;
    /* background-color: #eee;
    border-radius: 0.2rem; */
}

h1 {
    font-weight: 200;
    font-size: 4rem;
    margin: 0;
}

h2 {
    font-weight: 200;
    font-size: 2rem;

    position: relative;
    top: 0;
    left: 0;
}
h2::before {
    position: absolute;
    bottom: 0;
    content: "";
    width: 100%;
    border-bottom: 1px solid #ccc;
}

table {
    width: 100%;
}

th {
    background-color: #eee;
}
th,td {
    border: 1px #ccc solid;
    padding: 0.2rem 0.5rem;
    text-align: left;
}
tr:hover {
    background-color: #eee;
}

img {
    height: 32px;
}

.align-center {
    text-align: center;
}