.article-panels--open {
  overflow: hidden;
}

.article-panel-articles .article-panel-article {
  cursor: pointer;
}

.article-panel__backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 9999;
  background-color: #00000075;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease-out, visibility 0.25s;
  will-change: opacity, visibility;
}
.article-panel__backdrop--active {
  opacity: 1;
  visibility: visible;
}
.article-panel__backdrop--active .article-panel__article {
  transform: translateX(25vw);
}
.article-panel__article {
  position: fixed;
  top: 5vh;
  left: -25vw;
  bottom: 5vh;
  width: 25vw;
  background-color: #fff;
  transform: translateX(0);
  transition: transform 0.25s ease-out;
  will-change: transform;
}
.article-panel__article .article-frame {
  width: 100%;
  height: 100%;
  border: 0;
}
.article-panel__close {
  position: absolute;
  top: -2rem;
  right: -2rem;
  font-size: 2rem;
  color: #fff;
  cursor: pointer;
}