body {
  font-family:
    -apple-system,
    BlinkMacSystemFont,
    avenir next,
    avenir,
    segoe ui,
    helvetica neue,
    Adwaita Sans,
    Cantarell,
    Ubuntu,
    roboto,
    noto,
    helvetica,
    arial,
    sans-serif;
  line-height: 1.4;
  padding: 0;
  margin: 0;
  font-size: 18px;
}

header {
  border-bottom: 1px solid #000;
  padding: 20px;
}

header h1 a {
  text-decoration: none;
  color: inherit;
}

header h1 a:hover {
  text-decoration: underline;
}

header h1, header p {
  margin: 0;
}

a {
  color: blue;
  text-decoration: underline;
  text-decoration-skip-ink: auto;
}

a:hover {
  background: yellow;
}

main {
  max-width: 680px;
  padding: 0 20px;
  margin: 40px auto 40px auto;
}

main h2 {
  margin-top: 1rem;
  margin-bottom: 0.5rem;
  font-size: 20px;
}

main time {
  opacity: 0.5;
}

main textarea {
  font: inherit;
  width: 100%;
  height: 100px;
  padding: 5px 5px 15px 5px;
  resize: none;
  border-radius: 5px;
  border: 1px solid #000;
}

main article {
  font-weight: bold;
  font-style: italic;
}

form {
  position: relative;
  margin-bottom: 2rem;
}

form button {
  font: inherit;
  position: absolute;
  bottom: 5px;
  right: 5px;
  border-radius: 5px;
  border: 1px solid #000;
  background: #eee;
  padding: 1px 7px;
}

form button:hover {
  background: #eec;
}

footer {
  border-top: 1px solid #000;
  padding: 20px;
}