content-visibility: auto

  • This is a CSS attribute that tells to browser to forego full rendering of offscreen elements. Useful for things like big lists.
  • The attribute only takes effect if the entire element is offscreen, so in a list it should be applied to each item in the list instead of the container.
  • Use with contain-intrinsic-size: 1000px where the height there is the expected size of the element.