img {
  margin: 2.5rem auto;
  display: block;
  height: auto;
  max-width: 80%
}

p:last-of-type:not(blockquote p, li p, form p) {
  margin-top: 4rem
}

form {
width: 100%
}

input,textarea {
  font: 16px/1.5 menlo,monospace;
  padding: 8px;
  border: solid .5px light-dark(#111,white);
  color: light-dark(#111,white);
  background-color: light-dark(white,#1111);
  width:95%
}

textarea {
  height: 4lh;
  display: block
}

input+button {
  margin-top: 1em
}

button {
  border: solid 2px light-dark(#111,white);
  cursor: pointer;
  font: bold 16px monospace;
  padding: 8px 7px;
  color: light-dark(white,#111);
  background-color: light-dark(#111,white)
}