body {
  font-family: "PT Serif", Charter, Georgia, serif;
  line-height: 1.5;
  max-width: 600px;
  padding: 0 2em;
  margin: 2em auto;
}

a {
  color: black;
}

code {
  font-family: "PT Mono", Menlo, Consolas, monospace;
}

h1,
h2 {
  line-height: 1.3;
  margin-top: 2em;
}

h1 {
  font-size: 1.5em;
}

h2 {
  font-size: 1.25em;
  font-weight: normal;
  font-style: italic;
}

header a {
  text-decoration: none;
}

footer {
  font-size: 0.875em;
}

nav,
figure {
  text-align: center;
  margin: 2em 0;
}

figcaption {
  font-style: italic;
}

img,
svg,
video {
  max-width: 100%;
  height: auto;
  border-radius: 3px;
}

video,
audio {
  width: 100%;
}

summary {
  cursor: pointer;
}

pre,
fieldset,
input,
textarea {
  border: 1px solid #dfdfdf;
  border-radius: 3px;
}

pre {
  --grvsc-padding-h: 1em;
  --grvsc-border-radius: 3px;
  --grvsc-line-highlighted-background-color: #eee;
}

legend + pre {
  --grvsc-padding-v: 0;
  --grvsc-padding-h: 0;
  border: none;
  margin: 0;
}

pre code {
  font-size: 0.75em;
}

legend {
  font-weight: bold;
}

input,
textarea {
  padding: 0.25em;
}

textarea {
  box-sizing: border-box;
  width: 100%;
  resize: none;
}