html {
    height: 100%;
    color: #cccccc;
    background-color: hsl(240, 30%, 10%);/*#452b41*/ /*#2c314b*/
}

body {
    margin: auto;
    max-width: 64em;
    min-height: 100%;
    display: flex;
    flex-direction: column;
    background-color: hsl(240, 30%, 15%);
}

nav {
    /*#3a2438*/ /*#2a3257*/
    background-color: hsl(240, 30%, 20%);
}

nav > ul {
    display: flex;
    margin: 0 auto;
}

nav > ul > li:last-child {
    margin-left: auto;
}

nav ul {
    padding: 0;
}

nav li {
    margin: 2px;
    display: block;
    list-style: none;
}

nav li:hover {
    background-color: hsl(240, 30%, 30%);
}

nav .submenu:hover .submenu-contents {
    display: block;
}

nav .submenu-contents {
    display: none;
    position: absolute;
    z-index: 10;
    background-color: red;
}

nav a,
nav span {
    text-decoration: none;
    color: #dddddd;
    display: block;
    line-height: 2em;
    height: 2em;
    margin-left: 1em;
    margin-right: 1em;
}

nav span {
    cursor: pointer;
}

.article-date {
    margin-left: auto;
}

.link-like, a {
    color: #eeeeee;
    text-decoration: underline;
}

.rel-header {
    padding: 1em 2em 1em 2em;
}

header {
    background-color: hsl(240, 30%, 10%);
}

header p {
    text-align: center;
    margin-bottom: 0.15em;
}

header p ~ h1 {
    margin-top: 0.15em;
}

main {
    padding: 2em 2em 2em 2em;
    flex-grow: 1;
}

hr {
    margin: 0;
    margin-top: auto;
}

footer {
    padding: 1em 2em 1em 2em;
}

figure {
    text-align: center;
}

figure img {
    max-width: 30em;
    object-fit: contain;
    display: block;
    margin: auto;
}

h1, h2, h3, h4, h5, h6 {
    text-align: center;
}