*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 17px;
  line-height: 1.6;
  color: #1c1f23;
  background: #fff;
}

.wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 24px;
}

header {
  border-bottom: 1px solid #e6e8eb;
}

header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.brand {
  font-weight: 700;
  font-size: 20px;
  color: #1c1f23;
  text-decoration: none;
}

nav a {
  margin-left: 16px;
  color: #4a5059;
  text-decoration: none;
  font-size: 15px;
}

nav a:hover {
  color: #1c1f23;
}

main {
  padding: 48px 0;
}

h1 {
  font-size: 36px;
  line-height: 1.2;
  margin: 0 0 16px;
}

h2 {
  font-size: 24px;
  margin: 40px 0 12px;
}

h3 {
  font-size: 18px;
  margin: 24px 0 8px;
}

.lead {
  font-size: 20px;
  color: #4a5059;
}

.updated {
  color: #6b717a;
  font-size: 15px;
}

a {
  color: #1a5fd0;
}

ul {
  padding-left: 22px;
}

li {
  margin-bottom: 8px;
}

code {
  font-size: 15px;
  background: #f3f4f6;
  padding: 2px 6px;
  border-radius: 4px;
  word-break: break-all;
}

.box {
  background: #f7f8fa;
  border: 1px solid #e6e8eb;
  border-radius: 8px;
  padding: 16px 20px;
  margin: 24px 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  font-size: 16px;
}

th,
td {
  text-align: left;
  vertical-align: top;
  padding: 10px 12px;
  border-bottom: 1px solid #e6e8eb;
}

th {
  background: #f7f8fa;
}

footer {
  border-top: 1px solid #e6e8eb;
  padding: 24px 0 48px;
  font-size: 15px;
  color: #6b717a;
}

footer a {
  color: #4a5059;
  margin-right: 16px;
}