1. ::placeholder CSS pseudo-element
  2. ::selection CSS pseudo-element
  3. :placeholder-shown CSS pseudo-class
  4. @font-face Web fonts
  5. Blending of HTML/SVG elements
  6. calc() as CSS unit value
  7. 2.1 selectors
  8. background-attachment
  9. background-blend-mode
  10. background-position edge offsets
  11. box-decoration-break
  12. clip-path property
  13. Counter Styles
  14. Counters
  15. currentColor value
  16. Device Adaptation
  17. Exclusions Level 1
  18. Feature Queries
  19. Filter Effects
  20. font-feature-settings
  21. font-size-adjust
  22. font-stretch
  23. Generated content for pseudo-elements
  24. Gradients
  25. Grid Layout
  26. Hyphenation
  27. inline-block
  28. Masks
  29. min/max-width/height
  30. outline
  31. page-break properties
  32. position:fixed
  33. Regions
  34. Repeating Gradients
  35. resize property
  36. Scroll snap points
  37. Shapes Level 1
  38. Table display
  39. text-size-adjust
  40. touch-action property
  41. Variables
  42. will-change property
  43. 3D Transforms
  44. Animation
  45. Background-image options
  46. Border images
  47. Border-radius (rounded corners)
  48. Box-shadow
  49. Box-sizing
  50. Colors
  51. Cursors (new values)
  52. Cursors (original values)
  53. font-kerning
  54. image-orientation
  55. Media Queries
  56. Multiple backgrounds
  57. Multiple column layout
  58. object-fit/object-position
  59. Opacity
  60. Overflow-wrap
  61. selectors
  62. tab-size
  63. text-align-last
  64. Text-overflow
  65. Text-shadow
  66. Transforms
  67. Transitions
  68. word-break
  69. Flexible Box Layout Module
  70. Font unicode-range subsetting
  71. Intrinsic & Extrinsic Sizing
  72. Media Queries: interaction media features
  73. Media Queries: resolution feature
  74. rem (root em) units
  75. text-decoration styling
  76. text-emphasis styling
  77. TTF/OTF - TrueType and OpenType font support
  78. Viewport units: vw, vh, vmin, vmax
  79. Crisp edges/pixelated images
  80. Appearance
  81. Canvas Drawings
  82. font-smooth
  83. font-variant-alternates
  84. image-set
  85. Logical Properties
  86. pointer-events (for HTML)
  87. position:sticky
  88. Reflections
  89. text-stroke
  90. user-select: none
  91. Improved kerning pairs & ligatures
  92. All CSS features



"Can I use" provides up-to-date browser support tables for support of front-end web technologies on desktop and mobile web browsers.

The site was built and is maintained by Alexis Deveria, with occasional updates provided by the web development community. The design used as of 2014 was largely created by Lennart Schoors.


May I use your data in my presentation/article/site, etc?

Yes, the support data on this site is free to use under the CC BY 4.0 license.

Is there a way to see the support data in colors other than red/green?

Yes, you can enable accessible colors from this link or from the option under Settings. This color scheme will be used again on revisit.

Do you have the data available in a raw format?

Yes, the raw support data is available on GitHub and is updated regularly.

Could you add feature X to the site?

Adding features takes quite some time and there are many requests for additions. Because of this I use GitHub issues to manage requests. Feel free to add/vote for your feature there.

If you've done the research yourself already, you can also submit a feature on GitHub.

Could you cover email clients too so I can see what I can use in HTML emails?

That certainly sounds useful, but for now I only intend to take on web browser support.

Which features do you choose to add to this list?

I use the following criteria:

  1. Useful to web designers/developers
  2. Likely to be eventually implemented by the majority of browsers

Most features are added in priority order from this list.

How do you test support?

I use a hand-crafted test suite to test features, which tests for basic support of each feature.

The test suite is publicly available at

Where do you get your information for upcoming versions?

Most information comes directly from the latest developer/preview/nightly builds.

When is a feature considered "supported"?

When its primary purpose is largely fulfilled. It does not mean it's 100% supported, just that it's usable in most cases.

How often is this page updated?

I try to keep it as current as possible, with new information being usually being processed within a few days. Follow the feed if you'd like keep up with all the changes made.


  • Green = Supported
  • Red = Not supported
  • Greenish yellow = Partial support
  • Gray = Support unknown

*Global usage share statistics based on data from StatCounter GlobalStats for May, 2015. See the browser usage table for usage by browser version.