* {
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, avenir next, avenir, helvetica neue, helvetica, ubuntu, roboto, noto, segoe ui, arial, sans-serif;
  font-size: 16px;
  line-height: 1.5rem;
  color: #24292e;
}

img {
  max-width: 100%;
}

img.center {
  display: block;
  margin-left: auto;
  margin-right: auto;
}

.container {
  max-width: 1012px;
  margin: 0 auto;
  padding: 40px 20px;
}

h1 {
  margin-top: 4px;
  padding-bottom: 16px;
  border-bottom: 1px solid #e1e4e8;
  margin-bottom: 20px;
  line-height: 2.0rem;
  font-weight: 600;
}

h2 {
  border-bottom: 1px solid #eaecef;
  padding-bottom: .3em;
  font-weight: 600;
}

h3 {
  margin-top: 24px;
  margin-bottom: 16px;
  font-weight: 600;
}

.content {
  float: left;
  width: 75%;
  padding-right: 10px;
  margin-bottom: 20px;
}

.sidebar {
  float: right;
  width: 230px;
  padding: 8px 16px;
  border: 1px solid #e1e4e8;
  border-radius: 4px;
  font-size: 13px;
  margin-bottom: 20px;
}

.sidebar > h3 {
  margin: 0 0 16px 0;
  font-size: 1.25em;
}

.content ul {
  padding-left: 32px;
}

.sidebar > ul > li {
  font-weight: 600;
}

.sidebar ul {
  padding-left: 26px;
}

pre {
  padding: 16px;
  overflow: auto;
  font-size: 85%;
  line-height: 1.45;
  background-color: #f6f8fa;
  border-radius: 3px;
}

code.highlighter-rouge {
  padding: .2em .4em;
  margin: 0;
  font-size: 85%;
  background-color: rgba(27, 31, 35, .05);
  border-radius: 3px;
}

a {
  text-decoration: none;
  color: #0366d6;
}

a:hover {
  text-decoration: underline;
}

blockquote {
  padding: 0 1em;
  color: #6a737d;
  border-left: .25em solid #dfe2e5;
  margin-left: 0;
}

@media screen and (max-width: 980px) {
  .content, .sidebar {
    width: 100%;
  }
  .content {
    padding-right: 0;
  }
}