* {
  box-sizing: border-box;
}

.demo-box {
  margin: 1rem 0;
  border: thin solid #dee2e6;
  border-radius: 0.25rem;
  padding: 1rem;
}

.card > img {
  height: 200px;
  background: gray;
}

.bg-gradient {
    background-image: var(--bs-gradient);
}