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

pre[class*="language-"] {
  position: relative;
  overflow: auto;

  /* make space  */
  margin: 5px 0;
  padding: 1.75rem 0 1.75rem 1rem;
  border-radius: 10px;
}

pre[class*="language-"] button {
  position: absolute;
  top: 5px;
  right: 5px;

  font-size: 0.9rem;
  padding: 0.15rem;
  background-color: #828282;

  border: ridge 1px #7b7b7c;
  border-radius: 5px;
  text-shadow: #c4c4c4 0 0 2px;
}

pre[class*="language-"] button:hover {
  cursor: pointer;
  background-color: #bcbabb;
}

main {
  display: grid;
  max-width: 600px;
  margin: 20px auto;
}

h1 {
  font-size: 1.3rem;
}