/* Stolen from xvw.github.io */
*,
*::before,
*::after {
  box-sizing: border-box;
}
/* It is so obvious that it is surprising that it is not the default
   behaviour! */

body {
  margin: 32px auto;
  padding: 16px;
  max-width: 840px;
  background-color: #fff;
  color: #444444;
  font-family: monospace;
}

h1,
h2,
h3 {
  line-height: 1.2;
}

header {
  margin-bottom: 32px;
}

header h1 {
  margin: 0;
  font-weight: 900;
}

header h1::before,
header h1::after {
  color: #a3a1a8;
  font-weight: 100;
}

header h1::before {
  content: "<h1>";
}
header h1::after {
  content: "</h1>";
}

header blockquote {
  padding: 0;
  margin: 0;
}

hr {
  width: 0%;
  min-width: 20%;
  max-width: 100%;
  margin: 0 auto;
  border: none;
  border-bottom: 1px solid #666;
  position: relative;
  transition: box-shadow 200ms ease-in-out;
  box-shadow: 0px 0px 0px 0px #f9f9f9;
}

main {
  margin: 42px 0px;
  line-height: 1.6;
}

footer {
  padding-top: 32px;
}

.list-articles {
  list-style: none;
  margin: 0;
  padding: 0;
}

.list-articles > li {
  padding: 0;
  margin: 0;
  margin-bottom: 10px;
  display: flex;
  flex-direction: row;
}

.list-articles > li > div.side {
  flex: 0;
}


.list-articles > li > div.side img {
  width: 32px;
}

.list-articles > li > div.content {
  flex: 1;
  margin-left: 12px;
}

.list-articles > li > div.content > span.date {
  color: #a3a1a8;
}
.list-articles > li > div.content > p {
  padding: 0;
  margin: 0;
}

.list-articles > li > div.content > div.bottom {
  padding: 4px 0;
  margin: 8px 0;
  display: flex;
  flex-direction: row;
  align-items: center;
}


article h1 {
  font-size: 1.8em;
  margin: 20px 0;
}

article h2 {
  font-size: 1.6em;
  margin-top: 8px;
}

article h3 {
  font-size: 1.4em;
  margin-top: 4px; 
}

article h4 {
  font-size: 1.2em;
  margin-top: 2px;
}

article blockquote h4 {
  margin-top: 34px;
  margin-bottom: -16px;
}

article pre {
  margin: 16px 8px;
  padding: 8px;
  font-family: 'Courier new', monospace;
  font-size: 1.2em;
  line-height: 100%;
  width: 100%;
  overflow-x: auto;
  background-color: #000;
}

article img {
  display: block;
  margin: 32px auto;
  max-width: 100%;
}

.hljs-built_in {
  text-decoration: none;
}

.hljs-doctag,
.hljs-formula,
.hljs-symbol,
.hljs-string {
  background: none;
  color: #666;
}

article pre code {
  font-size: 0.8em;
}

article code {
  font-family: 'Courier new', monospace;
  font-size: 0.8em;
}

.tag-box {
  margin: 0;
  margin-bottom: 32px;
  padding-bottom: 12px;
  color: #111;
}

.tag-box > h3 {
  display: inline-block;
  padding: 0;
  margin: 0;
}

.tag-box > h3 > span {
  padding: 2px 8px;
  background-color: #111;
  color: #fff;
}

.tag-box:target > h3 > span {
  background-color: #c2410c;
}

.tag-box > h3 > span::before {
  content: "#";
}

.valid {
  display: inline-block;
  margin: 20px 0;
  border: 2px solid #444444;
  color: #444444;
  font-weight: 900;
  font-size: 0.8em;
  text-decoration: none;
  text-transform: uppercase;
  padding: 4px 4px 4px 1.5em;
  position: relative;
}

.valid::before {
  content: "";
  position: absolute;
  border-color: #009933;
  border-style: solid;
  border-width: 0 0.3em 0.25em 0;
  height: 1em;
  top: 1.3em;
  left: 0.6em;
  margin-top: -1em;
  transform: rotate(58deg);
  width: 0.5em;
}

.small-button {
  display: inline-block;
  margin: 4px 0;
  font-weight: 900;
  font-size: 0.7em;
  text-decoration: none;
  text-transform: uppercase;
  padding: 2px 4px;
  position: relative;
}

.rss {
  background-color: #d94c1a;
  color: #fff;
}

.twitter {
  background-color: #506ad4;
  color: #fff;
}

.github {
  background-color: #111;
  color: #fff;
}

.aeration {
  margin: 32px 0 !important;
}

.tags-list {
  padding: 0;
  margin: 0;
}

article .tags-list {
  margin-bottom: 32px;
}

.tags-list > li {
  display: inline-block;
  background-color: #f2f2f2;
  color: #333333;
  margin: 2px;
  padding: 2px 8px;
  font-size: 0.8em;
}

.tags-list > li::before {
  content: "#";
  color: #666;
  margin-right: 2px;
}

.tags-list > li > a {
  color: #333333;
  text-decoration: none;
}

@media screen and (max-width: 720px) {
  header h1 {
    margin-left: 32px;
  }

  header h1::before,
  header h1::after {
    margin-left: -32px;
    display: block;
  }

  header .banner {
    display: none;
  }

  header blockquote {
    margin-top: 16px;
  }

  main blockquote {
    margin: 4px;
  }
}