Web specifications support in Opera products

Last update: 2012-09-18

The data in the following tables is a high-level overview of web specifications supported in various Opera products. Further information will be added as it becomes available.

Opera desktop, device, and mobile products

Opera products use and depend upon various parts of the Opera Presto rendering engine and its web specification features. It is important to note that while the latest Opera Presto rendering engine has incorporated new web specification features, they may not have been added to the latest released versions of Opera products.

The Opera user agent string

Opera products will identify which Opera Presto version and core-integration-point they are using in their user agent string. Depending on your Opera product, the Opera user agent string is placed in the "About Opera" page, found by typing opera:about in the address bar, or by clicking "Help > About Opera" in the Menu.

Example user agent string:

Opera/9.80 (Macintosh; Intel Mac OS X 10.8.1) Presto/2.12.388 Version/12.10

This example user agent string describes that an Opera product is using the Opera Presto 2.12 rendering engine, incorporating core-integration-point 388.

Opera product relationships with the Opera Presto rendering engine

• Opera Desktop 12.10 runs on the Presto 2.12 rendering engine.
• Opera Desktop 12.00 runs on the Presto 2.10 rendering engine.
• Opera Desktop 11.60 runs on the Presto 2.10 rendering engine.
• Opera Devices SDK 3.6 runs on the Presto 2.12 rendering engine.
• Opera Devices SDK 3.5 runs on the Presto 2.12 rendering engine.
• Opera Devices SDK 3.4 runs on the Presto 2.12 rendering engine.
• Opera Mobile 12.1 runs on the Presto 2.11 rendering engine.
• Opera Mobile 12 runs on the Presto 2.10 rendering engine.
• Opera Mobile 11.5 runs on the Presto 2.9 rendering engine.
• Opera Mini's compression server uses the Presto 2.8 rendering engine.

CSS3 general

Item	Desktop 12.10	Desktop 12.00	Desktop 11.60	Devices SDK 3.6	Devices SDK 3.5	Devices SDK 3.4	Mobile 12.1	Mobile 12	Mobile 11.5	Mini
Notes: The blur radius effect in text-shadow is not supported in Opera Mini. border-image uses the -o- vendor prefix. Partial gradients support means that only linear gradients are supported. Up until Presto 2.10, Gradients in Opera use the -o- vendor prefix. Up until Presto 2.10, 2D Transforms in Opera use the -o- vendor prefix. Up until Presto 2.10, Transitions in Opera use the -o- vendor prefix. Up until Presto 2.10, Animations in Opera use the -o- vendor prefix. From Presto 2.10 onward, animatable properties are extended to also include background-position, border-bottom-color, border-color, border-left-color, border-right-color, border-top-color, and text-shadow, and step-start, step-end and steps timing functions for transition-timing-function are supported as well. @viewport uses the Opera -o- vendor prefix, like @-o-viewport.
Selectors	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Media Queries	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
text-shadow	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Partial
rgba()	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
hsla()	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
opacity	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No
Web Fonts	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No
background-clip	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
background-origin	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
multiple background images	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
background-size	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No
border-radius	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No
background-attachment	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No
box-shadow	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No
border-image	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No
Multi-col Layout	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No
"view-mode" Media Feature	Yes	Yes	Yes	Yes	Yes	Yes	No	No	No	No
Gradients	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Partial	No
2D Transforms	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No
Transitions	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No
Animations	Yes	Yes	No	Yes	Yes	Yes	Yes	No	No	No
@viewport	N/A	N/A	N/A	No	No	No	Yes	Yes	Yes	Yes
Generated Content for Paged Media	Yes	Yes	No	No	No	No	No	No	No	No
Flexbox	Yes	No	No	Yes	Yes	No	Yes	No	No	No
@supports	Yes	No	No	Yes	Yes	No	No	No	No	No

HTML5

Item	Desktop 12.10	Desktop 12.00	Desktop 11.60	Devices SDK 3.6	Devices SDK 3.5	Devices SDK 3.4	Mobile 12.1	Mobile 12	Mobile 11.5	Mini
Notes: Opera Desktop supports WebM (VP8+Vorbis), Ogg (Theora+Vorbis), and WAVE (PCM). Opera Devices SDK provides an API for HW support of HTML5 <audio>/<video>. Opera Mobile's support of particular video codecs is device-dependent: H.264 is supported if available on the platform. Opera Mobile does not support autofocus. For Opera Mini, input type support is limited to checkbox, radiobutton, file, password, and text.
input type	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Partial
input attribute	Yes	Yes	Yes	Yes	Yes	Yes	Partial	Partial	Partial	Partial
contentEditable	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No	No	No
audio	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No
video	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No
Session history & navigation	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No
HTML5 parser	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No	No
Microdata	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No
Drag and Drop	Yes	Yes	No	No	No	No	Yes	No	No	No
Clipboard	Yes	No	No	No	No	No	Yes	No	No	No

Web Storage

Item	Desktop 12.10	Desktop 12.00	Desktop 11.60	Devices SDK 3.6	Devices SDK 3.5	Devices SDK 3.4	Mobile 12.1	Mobile 12	Mobile 11.5	Mini
localStorage	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No
sessionStorage	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No
AppCache	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No
Web SQL DB	Yes	Yes	Yes	No	No	No	Yes	Yes	Yes	No

Graphics

Product	Desktop 12.10	Desktop 12.00	Desktop 11.60	Devices SDK 3.6	Devices SDK 3.5	Devices SDK 3.4	Mobile 12.1	Mobile 12	Mobile 11.5	Mini
Notes: Opera Mini does not support asynchronous operations or user interaction events in SVG, canvas, and SMIL.
SVG	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Partial
Canvas	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Partial
SMIL	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Partial
WebP	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
ICC v4	Yes	No	No	No	No	No	No	No	No	No

Miscellaneous

Item	Desktop 12.10	Desktop 12.00	Desktop 11.60	Devices SDK 3.6	Devices SDK 3.5	Devices SDK 3.4	Mobile 12.1	Mobile 12	Mobile 11.5	Mini
Notes: Selectors API function calls that require user interaction events will not work in Opera Mini. Devices SDK 3.4 and 3.5 support WebSockets protocol RFC-6455.
Selectors API	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Partial
Viewport META	N/A	N/A	N/A	No	No	No	Yes	Yes	Yes	Yes
Web Workers	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No
Geolocation	Yes	Yes	Yes	No	No	No	Yes	Yes	Yes	No
Touch Events	No	No	No	No	No	No	Yes	Yes	Yes	No
W3C File API	Partial	Partial	Partial	Partial	Partial	Partial	Partial	Partial	Partial	No
ECMAScript 5.1	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No	No
WebGL	Yes	Yes	No	Yes	Yes	Yes	Yes	Yes	No	No
getUserMedia	Yes	Yes	No	No	No	No	Yes	Yes	No	No
Orientation Events	No	No	No	No	No	No	Yes	Yes	No	No
CORS	Yes	Yes	No	Yes	Yes	Yes	Yes	Yes	No	No
SPDY	Yes	No	No	Yes	Yes	No	Yes	No	No	No
Web Sockets	Yes	No	No	Yes	Yes	Yes	Yes	No	No	No
Page Visibility	Yes	No	No	Yes	Yes	Yes	Yes	No	No	No
Fullscreen	Yes	No	No	Yes	Yes	Yes	No	No	No	No