body {
    text-align: center;
    padding: 0;
    margin: 0;
    font-family: Arial, Tahoma, sans-serif;
}

header {
    margin: 0;
    padding: 0;
}

article header h1 {
    font-size: 2rem;
    margin: 0 2rem;
    padding: 1.5rem 0;
    border-bottom: 1px dashed #ccc;
}

a:hover, a:focus {
    text-decoration: none;
}


/**
 * Header
 */

header nav {
    background: #000;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: calc(30px + 0.5rem) auto calc(30px + 0.5rem);
}

header nav > * {
    grid-column-start: auto;
    grid-column-end: auto;
}

header nav > span:first-of-type {
    text-align: left;
}

header nav > span:last-of-type {
    text-align: right;
}

header nav ul {
    margin: 0;
    padding: 0;
}

header nav ul li {
    display: inline-block;
    padding: 0.5rem;
    margin: 0;
}

header nav ul li.active {
    background-color: #666;
}

header nav a {
    color: gold;
}

header nav a.active {
    color: #fff;
    text-decoration: none;
}

header .logo {
    padding: 0.25rem;
    color: #fff;
    display: inline-grid;
}

header a {
    display: inline-grid;
}

header a.social {
    opacity: 0.5;
    /* transition: opacity 0.15s linear; */
}

header a.social:hover, header a.social:focus {
    opacity: 1;
}

header img {
    display: inline-block;
    height: 30px;
    width: 30px;
}


table {
    margin: 0 auto;
}

table, th, td {
    border-collapse: collapse;
    border: 1px dashed #ccc;
    padding: 0.5rem;
}

th {
    background-color: #eee;
}

p, li {
    text-align: left;
    line-height: 1.4rem;
}

li {
    margin: 0.5rem auto;
}

ul#tools {
    margin: 0;
    padding: 0;
}

ul#tools li {
    position: relative;
    display: block;
    height: 150px;
    width: 100%;
    background-color: orange;
}

ul#tools a {
    position: absolute;
    bottom: 0;
    right: 0;
    display: block;
    color: #fff;
    font-size: 150%;
    padding: 1rem;
    width: auto;
    text-align: right;
    background-color: rgba(0, 0, 0, 0.25);
}

section {
    margin: 4rem auto;
    padding: 0 2rem;
    max-width: 40rem;
}

blockquote, footer {
    border-style: dotted;
    border-color: #ccc;
    padding: 2rem;
}

blockquote {
    margin: 2rem;
    border-width: 1px 0;
    font-size: 1.2rem;
    font-family: 'Times New Roman', Times, serif;
}

blockquote p {
    margin: 0;
}

footer {
    border-width: 1px 0 0 0;
    margin: 0 2rem;
}

article nav {
    margin: 0;
    padding: 2rem;
    background-color: #eee;
}