CSS overflow property
Originally a single property for controlling overflowing content in both horizontal & vertical directions, the `overflow` property is now a shorthand for `overflow-x` & `overflow-y`. The latest version of the specification also introduces the `clip` value that blocks programmatic scrolling.
The `hidden` attribute may be applied to any element, and effectively hides elements similar to `display: none` in CSS.
Large, Small, and Dynamic viewport units
Viewport units similar to `vw` and `vh` that are based on shown or hidden browser UI states to address shortcomings of the original units. Currently defined as the `lvh`, `lvw`, `svh`, `svw`, `dvh`, `dvw` units.
WAI-ARIA Accessibility features
Method of providing ways for people with disabilities to use dynamic web content and web applications.
document api: hidden
elementinternals api: ariahidden
element api: ariahidden
htmlelement api: hidden
html element: input: `type="hidden"`
html attribute: hidden