html { scrollbar-gutter: stable; }
html, body {
  width: 100%;
  overflow-x: hidden;
  margin: 0;
  padding: 0;
  background: #fff;
}

.artboard {
  position: relative;
  width: 1440px;
  margin: 0;
  padding: 0;
}

.cover {
  height: 900px;
}

.long-page {
  height: 10441px;
  overflow: hidden;
}

.page-art {
  display: block;
  width: 1440px;
  max-width: none;
  margin: 0;
  padding: 0;
  border: 0;
}


@media (max-width: 768px) { html { scrollbar-gutter: auto; } }