.original-page {
  width: min(100%, 1040px);
}

.original-page .reading-header,
.original-page .reading-nav,
.original-page .footer {
  max-width: 664px;
  margin-left: auto;
  margin-right: auto;
}

.original-pages > img {
  display: block;
  width: 100%;
  height: auto;
}