body {
  width: 360px;
  margin: 0 auto;
}

h1 {
  font-size: 1.3rem;
  margin: 1rem 0;
}

.space-between {
  display: flex;
  justify-content: space-between;
}

img {
  position: relative;
  top: 6px;
  height: 1rem;
  margin-left: 0.5rem;
}

details {
  background-color: rgba(236, 210, 166, 0.3);
  border: 1px solid #ccc;
  padding: 0.5rem;
  margin: 1rem 0;
}

pre {
  display: inline;
}

.box {
  border: 1px solid #ccc;
  padding: 0 0.5rem;
  margin: 1rem 0;
}

.gray {
  background-color: rgba(183, 177, 168, 0.3);
}

.box button {
  background-color: rgba(0, 0, 0, 0.813);
  color: white;
}