html {
  width: 1200px;
  margin: auto;
}
.header {
  background-color: black;
  color: white;
  padding: 15px;
}
img {
  width: 100%;
}
.caption {
  background-color: white;
  padding: 10px;
  font-size: 1.1rem;
  margin-bottom: 30px;
}
.blockquote {
  color: #737373;
  width: 80%;
  margin: auto;
  padding-bottom: 20px;
}
.blockquote-footer {
  font-size: 0.9rem;
}