*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #fff;
}

main {
  max-width: 42rem;
  margin: 2rem auto;
  padding: 0 1rem;
}

h1, h2, h3, h4, h5, h6 {
  margin-top: 1.5em;
  margin-bottom: 0.5em;
  line-height: 1.3;
}

p {
  margin-bottom: 1em;
}

a {
  color: #0366d6;
}

code {
  background-color: #f6f8fa;
  padding: 0.2em 0.4em;
  border-radius: 3px;
  font-size: 0.9em;
}

pre {
  background-color: #f6f8fa;
  padding: 1em;
  border-radius: 6px;
  overflow-x: auto;
  margin-bottom: 1em;
}

pre code {
  background: none;
  padding: 0;
}

img {
  max-width: 100%;
  height: auto;
}

blockquote {
  border-left: 4px solid #dfe2e5;
  padding-left: 1em;
  color: #6a737d;
  margin-bottom: 1em;
}

ul, ol {
  margin-bottom: 1em;
  padding-left: 2em;
}