.Collapsible {
  position: relative;
  overflow: hidden;
  will-change: height;
  transition: height var(--x-duration-slow) var(--x-timing-spring);
}

.fade {
  mask-image: linear-gradient(
    to top,
    rgba(0, 0, 0, 0),
    rgba(0, 0, 0, 1) rem(10px)
  );
}