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

body, html {
  margin: 1em;
  font-size: 1vw;
}

section {
  color: black;
}

input, button, p {
  font-family: monospace;
}

p {
  font-size: 4vw;
  line-height: 1.5;
  margin-bottom: 2em;
}

.info {
  background: yellow;
  padding: 1em;
  text-transform: uppercase;
  text-align: center;
  font-style: italic;
}

input, button {
  font-size: 8vw;
  text-transform: uppercase;
  margin-bottom: 0.5em;
  border: 1px solid black;
  background: none;
  padding: 0.15em 0.25em;
  cursor: pointer;
}

input[type="text"] {
  max-width: 100%;
  display: block;
}

input::placeholder {
  color: rgb(255, 208, 0);
  font-style: italic;
  font-size: 1em;
  opacity: 1; /* Firefox fix */
}