Can I use
?
50 results found.

  1. Blob URLs

    Method of creating URL handles to the specified File or Blob object.

  2. ch (character) unit

    Unit representing the width of the character "0" in the current font, of particular use in combination with monospace fonts.

  3. CSS Filter Effects

    Method of applying filter effects using the `filter` property to elements, matching filters available in SVG. Filter functions include blur, brightness, contrast, drop-shadow, grayscale, hue-rotate, invert, opacity, sepia and saturate.

  4. Data URIs

    Method of embedding images and other files in webpages as a string of text, generally using base64 encoding.

  5. CSS Flexible Box Layout Module

    Method of positioning elements in horizontal or vertical stacks. Support includes all properties prefixed with `flex`, as well as `display: flex`, `display: inline-flex`, `align-content`, `align-items`, `align-self`, `justify-content` and `order`.

  6. Font unicode-range subsetting

    This @font-face descriptor defines the set of Unicode codepoints that may be supported by the font face for which it is declared. The descriptor value is a comma-delimited list of Unicode range (<urange>) values. The union of these ranges defines the set of codepoints that serves as a hint for user agents when deciding whether or not to download a font resource for a given text run.

  7. Fullscreen API

    API for allowing content (like a video or canvas element) to take up the entire screen.

  8. Color input type

    Form field allowing the user to select a color.

  9. querySelector/querySelectorAll

    Method of accessing DOM elements using CSS selectors

  10. rem (root em) units

    Type of unit similar to `em`, but relative only to the root element, not any parent element. Thus compounding does not occur as it does with `em` units.

  11. SVG (basic support)

    Method of displaying basic Vector Graphics features using the embed or object elements. Refers to the SVG 1.1 spec.

  12. FIDO U2F API

    JavaScript API to interact with Universal Second Factor (U2F) devices. This allows users to log into sites more securely using two-factor authentication with a USB dongle.

  13. unhandledrejection/rejectionhandled events

    The `unhandledrejection` event is fired when a Promise is rejected but there is no rejection handler to deal with the rejection. The `rejectionhandled` event is fired when a Promise is rejected, and after the rejection is handled by the promise's rejection handling code.

  14. URL API

    API to retrieve the various parts that make up a given URL from a given URL string.

  15. URL Scroll-To-Text Fragment

    URL fragment that defines a piece of text to be scrolled into view and highlighted.

  16. URLSearchParams

    The URLSearchParams interface defines utility methods to work with the query string of a URL.

  17. CSS user-select: none

    Method of preventing text/element selection using CSS.

  18. User Timing API

    Method to help web developers measure the performance of their applications by giving them access to high precision timestamps.

  19. Small, Large, 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 `sv*` units (`svb`, `svh`, `svi`, `svmax`, `svmin`, `svw`), `lv*` units (`lvb`, `lvh`, `lvi`, `lvmax`, `lvmin`, `lvw`), `dv*` units (`dvb`, `dvh`, `dvi`, `dvmax`, `dvmin`, `dvw`) and the logical `vi`/`vb` units.

  20. Viewport units: vw, vh, vmin, vmax

    Length units representing a percentage of the current viewport dimensions: width (vw), height (vh), the smaller of the two (vmin), or the larger of the two (vmax).

  21. CSS -webkit-user-drag property

    The non-standard `-webkit-user-drag` CSS property can be used to either make an element draggable or explicitly non-draggable (like links and images). See the standardized [draggable attribute/property](/mdn-api_htmlelement_draggable) for the recommended alternative method of accomplishing the same functionality.

  22. uievent api

  23. uievent api: detail

  24. uievent api: view

  25. uievent api: which

  26. url api

  27. urlpattern api

  28. url api: hash

  29. url api: host

  30. url api: hostname

  31. url api: href

  32. url api: origin

  33. url api: password

  34. url api: pathname

  35. url api: port

  36. url api: protocol

  37. url api: search

  38. url api: tojson

  39. url api: tostring

  40. url api: username

  41. usb api

  42. usbdevice api

  43. usbdevice api: open

  44. usbendpoint api

  45. usbinterface api

  46. usb api: getdevices

  47. useractivation api

  48. css property: unicode-bidi

  49. html element: u

  50. uc browser for android