# UI - [``](./Portal.md) — creates React portal into document's body. - [``](./Overlay.md) — creates an overlay over the whole page. - [``](./Modal.md) — creates an overlay and keeps focus in modal. - [``](./Dimmer.md) — Dims its parent element. - [``](./Dimmable.md) — Dims its children. - [``](./Parallax.md) — Creates *parallax* effect when user scrolls. - [``](./FullScreen.md) — displays children in full screen. - [``](./Slider.md) — provides mouse position inside element when scrubbing. - [``](./DropArea.md) — area where to copy-paste and drop files. - [``](./Group.md) — separates its children using a separator. - [``](./OutsideClick.md) — tracks clicks outside its children. - [``](./Ripple.md) — creates a material-design-like ripple effect. - [``](./Img.md) — render-prop for `` to handle loading and error states. - [``](./WidthQuery.md) — Renders the `` child that matches a query. - [``](./WindowWidthQuery.md) — `` that uses ``. - [``](./InlineWidthQuery.md) — `` that uses ``. - [`