input[type=number] {
  width: 4rem
}

textarea {
  min-height: 3rem;
  resize: vertical;
}

body>footer {
  margin-top: 0;
}

article>h4 {
  margin: 0;
}

article>h5 {
  margin-top: 0;
  font-weight: normal;
  font-style: italic;
  font-size: small;
}

.xx-small {
  opacity: 0.1;
  font-size: xx-small;
}

#countdown {
  text-align: center;
}

.days, .hours, .minutes, .seconds {
  font-weight: bold;
}