| accent-height | font-face | Not used in rendering but checked during parsing. | 1.1 | No |
| accumulate | feImage, svg, g, defs, symbol, use, switch, marker, pattern, mask, filter, a, font, glyph, missing-glyph, foreignObject, text, tspan, tref, textPath, altGlyph, clipPath | | 1.1 | Yes |
| alphabetic | font-face | Not used in rendering but checked during parsing. | 1.1 | No |
| amplitude | feFuncR, feFuncG, feFuncB, feFuncA | | 1.1 | Yes |
| arabic-form | glyph | | 1.1 | Yes |
| ascent | font-face | | 1.1 | Yes |
| attributeType | animate, set, animateColor, animateTransform | | 1.1 | Yes |
| azimuth | feDistantLight | | 1.1 | Yes |
| baseFrequency | feTurbulence | | 1.1 | Yes |
| baseProfile | svg | Simply ignored. | 1.1 | No |
| bbox | font-face | Not used in rendering but checked during parsing. | 1.1 | No |
| bias | feConvolveMatrix | | 1.1 | Yes |
| by | animate, animateColor, animateTransform, animateMotion | | 1.1 | Yes |
| calcMode | animateMotion | | 1.1 | Yes |
| cap-height | font-face | Not used in rendering but checked during parsing. | 1.1 | No |
| class | svg, g, defs, desc, title, symbol, use, image, switch, path, rect, circle, ellipse, line, polyline, polygon, text, tspan, tref, textPath, altGlyph, glyphRef, marker, linearGradient, radialGradient, stop, pattern, clipPath, mask, filter, feDiffuseLighting, feFlood, feImage, feSpecularLighting, a, font, glyph, missing-glyph, foreignObject | | 1.1 | Yes |
| clipPathUnits | clipPath | | 1.1 | Yes |
| contentScriptType | svg | Only 'text/ecmascript' is supported and all scripts are assumed to be 'text/ecmascript'. | 1.1 | No |
| contentStyleType | svg | Only 'text/css' is supported and all stylesheets are assumed to be 'text/css'. | 1.1 | No |
| cx | circle, ellipse, radialGradient | | 1.1 | Yes |
| cy | circle, ellipse, radialGradient | | 1.1 | Yes |
| d | glyph, missing-glyph, path | | 1.1 | Yes |
| descent | font-face | | 1.1 | Yes |
| diffuseConstant | feDiffuseLightning | | 1.1 | Yes |
| direction | feImage, svg, g, defs, symbol, use, switch, marker, pattern, mask, filter, a, font, glyph, missing-glyph, foreignObject, text, tspan, tref, textPath, altGlyph, clipPath | | 1.1 | Yes |
| divisor | feConvolveMatrix | | 1.1 | Yes |
| dur | animate, set, animateMotion, animateColor, animateTransform | | 1.1 | Yes |
| dx | text, tspan, tref, altGlyph, glyphRef, feOffset | | 1.1 | Yes |
| dy | text, tspan, tref, altGlyph, glyphRef, feOffset | | 1.1 | Yes |
| edgeMode | feConvolveMatrix | | 1.1 | Yes |
| elevation | feDistantLight | | 1.1 | Yes |
| end | animate, set, animateMotion, animateColor, animateTransform | | 1.1 | Yes |
| exponent | feFuncR, feFuncG, feFuncB, feFuncA | | 1.1 | Yes |
| externalResourcesRequired | g, defs, symbol, use, image, switch, path, rect, circle, ellipse, line, polyline, polygon, text, tspan, tref, textPath, altGlyph, marker, linearGradient, radialGradient, pattern, clipPath, mask, filter, feImage, cursor, a, view, script, animate, set, animateMotion, animateColor, animateTransform, font, foreignObject, svg, mpath | Rendering will always be done while external resources are being fetched. | 1.1 | No |
| fill | animate, set, animateMotion, animateColor, animateTransform | | 1.1 | Yes |
| filterRes | filter | | 1.1 | Yes |
| filterUnits | filter | | 1.1 | Yes |
| font-family | font-face | | 1.1 | Yes |
| font-size | font-face | | 1.1 | Yes |
| font-stretch | font-face | | 1.1 | No |
| font-style | font-face | | 1.1 | Yes |
| font-variant | font-face | | 1.1 | Yes |
| font-weight | font-face | | 1.1 | Yes |
| format | altGlyph, glyphRef | The altGlyph and glyphRef elements are not supported | 1.1 | No |
| from | animate, animateColor, animateTransform, animateMotion | | 1.1 | Yes |
| fx | radialGradient | | 1.1 | Yes |
| fy | radialGradient | | 1.1 | Yes |
| g1 | hkern, vkern | | 1.1 | Yes |
| g2 | hkern, vkern | | 1.1 | Yes |
| glyph-name | glyph | | 1.1 | Yes |
| glyphRef | altGlyph, glyphRef | The altGlyph and glyphRef elements are not supported | 1.1 | No |
| gradientTransform | radialGradient, linearGradient | | 1.1 | Yes |
| gradientUnits | radialGradient, linearGradient | | 1.1 | Yes |
| hanging | font-face | Not used in rendering but checked during parsing. | 1.1 | No |
| height | svg, filter, feMerge, feTurbulence, use, pattern, mask, rect, foreignObject, image | | 1.1 | Yes |
| horiz-adv-x | glyph, missing-glyph, font | | 1.1 | Yes |
| horiz-origin-x | glyph, missing-glyph, font | Origin is always at (0,0) | 1.1 | No |
| horiz-origin-y | glyph, missing-glyph, font | Origin is always at (0,0) | 1.1 | No |
| ideographic | font-face | Not used in rendering but checked during parsing. | 1.1 | No |
| in | feComponentTransfer, feFlood, feTile, feBlend, feColorMatrix, feComposite, feConvolveMatrix, feDiffuseLighting, feDisplacementMap, feGaussianBlur, feMorphology, feOffset, feSpecularLighting, feMergeNode | | 1.1 | Yes |
| in2 | feBlend, feComposite, feDisplacementMap | | 1.1 | Yes |
| intercept | feFuncR, feFuncG, feFuncB, feFuncA | | 1.1 | Yes |
| k | hkern, vkern | | 1.1 | Yes |
| k1 | feComposite | | 1.1 | Yes |
| k2 | feComposite | | 1.1 | Yes |
| k3 | feComposite | | 1.1 | Yes |
| k4 | feComposite | | 1.1 | Yes |
| kernelMatrix | feConvolveMatrix | | 1.1 | Yes |
| kernelUnitLength | feConvolveMatrix, feDiffuseLighting, feSpecularLighting | | 1.1 | Yes |
| keyPoints | animateMotion | | 1.1 | Yes |
| keySplines | animate, animateColor, animateTransform, animateMotion | | 1.1 | Yes |
| keyTimes | animate, animateColor, animateTransform, animateMotion | | 1.1 | Yes |
| lang | glyph | Language information not used when selecting glyphs. | 1.1 | No |
| lengthAdjust | textPath, text, tspan, tref | | 1.1 | Yes |
| limitingConeAngle | feSpotLight | | 1.1 | Yes |
| local | color-profile | | 1.1 | No |
| markerHeight | marker | | 1.1 | Yes |
| markerUnits | marker | | 1.1 | Yes |
| markerWidth | marker | | 1.1 | Yes |
| maskContentUnits | mask | | 1.1 | Yes |
| maskUnits | mask | | 1.1 | Yes |
| mathematical | font-face | Not used in rendering but checked during parsing. | 1.1 | No |
| max | animate, set, animateMotion, animateColor, animateTransform | | 1.1 | Yes |
| media | style | | 1.1 | No |
| method | textPath | | 1.1 | Yes |
| min | animate, set, animateMotion, animateColor, animateTransform | | 1.1 | Yes |
| mode | feBlend | | 1.1 | Yes |
| name | color-profile | | 1.1 | No |
| numOctaves | feTurbulence | | 1.1 | Yes |
| offset | stop, feFuncR, feFuncG, feFuncB, feFuncA | | 1.1 | Yes |
| onabort | svg | | 1.1 | Yes |
| onactivate | g, defs, symbol, switch, svg, use, image, path, rect, circle, ellipse, line, polyline, polygon, text, tspan, tref, textPath, altGlyph, a, foreignObject | The event listener is registered, but currently the event itself is never dispatched in Opera. | 1.1 | Yes |
| onbegin | animate, set, animateMotion, animateColor, animateTransform | | 1.1 | Yes |
| onclick | g, defs, symbol, switch, svg, use, image, path, rect, circle, ellipse, line, polyline, polygon, text, tspan, tref, textPath, altGlyph, a, foreignObject | | 1.1 | Yes |
| onend | animate, set, animateMotion, animateColor, animateTransform | | 1.1 | Yes |
| onerror | animate, set, animateMotion, animateColor, animateTransform | | 1.1 | Yes |
| onfocusin | g, defs, symbol, switch, svg, use, image, path, rect, circle, ellipse, line, polyline, polygon, text, tspan, tref, textPath, altGlyph, a, foreignObject | | 1.1 | Yes |
| onfocusout | g, defs, symbol, switch, svg, use, image, path, rect, circle, ellipse, line, polyline, polygon, text, tspan, tref, textPath, altGlyph, a, foreignObject | | 1.1 | Yes |
| onload | g, defs, symbol, switch, svg, use, image, path, rect, circle, ellipse, line, polyline, polygon, text, tspan, tref, textPath, altGlyph, a, foreignObject | | 1.1 | Yes |
| onmousedown | g, defs, symbol, switch, svg, use, image, path, rect, circle, ellipse, line, polyline, polygon, text, tspan, tref, textPath, altGlyph, a, foreignObject | | 1.1 | Yes |
| onmousemove | g, defs, symbol, switch, svg, use, image, path, rect, circle, ellipse, line, polyline, polygon, text, tspan, tref, textPath, altGlyph, a, foreignObject | | 1.1 | Yes |
| onmouseout | g, defs, symbol, switch, svg, use, image, path, rect, circle, ellipse, line, polyline, polygon, text, tspan, tref, textPath, altGlyph, a, foreignObject | | 1.1 | Yes |
| onmouseover | g, defs, symbol, switch, svg, use, image, path, rect, circle, ellipse, line, polyline, polygon, text, tspan, tref, textPath, altGlyph, a, foreignObject | | 1.1 | Yes |
| onmouseup | g, defs, symbol, switch, svg, use, image, path, rect, circle, ellipse, line, polyline, polygon, text, tspan, tref, textPath, altGlyph, a, foreignObject | | 1.1 | Yes |
| onrepeat | animate, set, animateMotion, animateColor, animateTransform | Some events may be dropped if there's not enough time to handle them, for example when the duration of an animation is shorter than the time it takes to render the svg. | 1.1 | Yes |
| onresize | svg | | 1.1 | Yes |
| onscroll | svg | The event listener is registered, but currently the event itself is never dispatched in Opera. | 1.1 | Yes |
| onunload | svg | The event listener is registered, but currently the event itself is never dispatched in Opera. | 1.1 | Yes |
| onzoom | svg | | 1.1 | Yes |
| operator | feMorphology, feComposite | | 1.1 | Yes |
| order | feConvolveMatrix | | 1.1 | Yes |
| orient | marker | | 1.1 | Yes |
| orientation | glyph | | 1.1 | No |
| overline-position | font-face | | 1.1 | Yes |
| overline-thickness | font-face | | 1.1 | Yes |
| panose-1 | font-face | Not used in rendering but checked during parsing. | 1.1 | No |
| path | animateMotion | | 1.1 | Yes |
| pathLength | path | | 1.1 | Yes |
| patternContentUnits | pattern | | 1.1 | Yes |
| patternTransform | pattern | | 1.1 | Yes |
| patternUnits | pattern | | 1.1 | Yes |
| points | polyline, polygon | | 1.1 | Yes |
| pointsAtX | feSpotLight | | 1.1 | Yes |
| pointsAtY | feSpotLight | | 1.1 | Yes |
| pointsAtZ | feSpotLight | | 1.1 | Yes |
| preserveAlpha | feConvolveMatrix | | 1.1 | Yes |
| preserveAspectRatio | svg, symbol, image, marker, pattern, view | | 1.1 | Yes |
| primitiveUnits | filter | | 1.1 | Yes |
| r | radialGradient, circle | | 1.1 | Yes |
| radius | feMorphology | | 1.1 | Yes |
| refX | marker | | 1.1 | Yes |
| refY | marker | | 1.1 | Yes |
| rendering-intent | color-profile | | 1.1 | No |
| repeatCount | animate, set, animateMotion, animateColor, animateTransform | | 1.1 | Yes |
| repeatDur | animate, set, animateMotion, animateColor, animateTransform | | 1.1 | Yes |
| requiredExtensions | svg, g, defs, use, image, switch, path, rect, circle, ellipse, line, polyline, polygon, text, tspan, tref, textPath, altGlyph, pattern, clipPath, mask, cursor, a, animate, set, animateMotion, animateColor, animateTransform, foreignObject | | 1.1 | Yes |
| restart | animate, set, animateMotion, animateColor, animateTransform | | 1.1 | Yes |
| result | feMerge, feTurbulence | | 1.1 | Yes |
| rotate | animateMotion, text, tspan, tref, altGlyph | | 1.1 | Yes |
| rx | rect, ellipse | | 1.1 | Yes |
| ry | rect, ellipse | | 1.1 | Yes |
| scale | feDisplacementMap | | 1.1 | Yes |
| seed | feTurbulence | | 1.1 | Yes |
| slope | feFuncR, feFuncG, feFuncB, feFuncA | | 1.1 | Yes |
| slope | font-face | Not used in rendering but checked during parsing. | 1.1 | No |
| spacing | textPath | | 1.1 | No |
| specularConstant | feSpecularLighting | | 1.1 | Yes |
| specularConstant | feSpecularLighting | | 1.1 | Yes |
| specularExponent | feSpecularLighting, feSpotLight | | 1.1 | Yes |
| spreadMethod | linearGradient, radialGradient | | 1.1 | Yes |
| startOffset | textPath | | 1.1 | Yes |
| stdDeviation | feGaussianBlur | | 1.1 | Yes |
| stemh | font-face | Not used in rendering but checked during parsing. | 1.1 | No |
| stemv | font-face | Not used in rendering but checked during parsing. | 1.1 | No |
| stitchTiles | feTurbulence | | 1.1 | Yes |
| strikethrough-position | font-face | | 1.1 | Yes |
| strikethrough-thickness | font-face | | 1.1 | Yes |
| style | svg, g, defs, desc, title, symbol, use, image, switch, path, rect, circle, ellipse, line, polyline, polygon, text, tspan, tref, textPath, altGlyph, glyphRef, marker, linearGradient, radialGradient, stop, pattern, clipPath, mask, filter, feImage, a, font, glyph, missing-glyph, foreignObject | | 1.1 | Yes |
| surfaceScale | feDiffuseLighting, feSpecularLighting | | 1.1 | Yes |
| systemLanguage | svg, g, defs, use, image, switch, path, rect, circle, ellipse, line, polyline, polygon, text, tspan, tref, textPath, altGlyph, pattern, clipPath, mask, cursor, a, animate, set, animateMotion, animateColor, animateTransform, foreignObject | | 1.1 | Yes |
| tableValues | feFuncR, feFuncG, feFuncB, feFuncA | | 1.1 | Yes |
| target | a | | 1.1 | Yes |
| targetX | feConvolveMatrix | | 1.1 | Yes |
| targetY | feConvolveMatrix | | 1.1 | Yes |
| textLength | text, tspan, tref, textPath | | 1.1 | Yes |
| title | style | Used as in HTML | 1.1 | Yes |
| to | animate, animateColor, animateTransform, animateMotion, set | | 1.1 | Yes |
| transform | g, defs, use, image, switch, path, rect, circle, ellipse, line, polyline, polygon, text, clipPath, a, foreignObject | | 1.1 | Yes |
| type | feTurbulence, feColorMatrix, feFuncR, feFuncG, feFuncB, feFuncA, animateTransform | Not supported on style and script elements. | 1.1 | Yes |
| u1 | hkern, vkern | | 1.1 | No |
| u2 | hkern, vkern | | 1.1 | No |
| underline-position | font-face | | 1.1 | Yes |
| underline-thickness | font-face | | 1.1 | Yes |
| unicode | glyph | | 1.1 | Yes |
| unicode-range | font-face | Font selection based on presence of glyphs in unicode blocks. | 1.1 | No |
| units-per-em | font-face | | 1.1 | Yes |
| v-alphabetic | font-face | Not used in rendering but checked during parsing. | 1.1 | No |
| v-hanging | font-face | Not used in rendering but checked during parsing. | 1.1 | No |
| v-ideographic | font-face | Not used in rendering but checked during parsing. | 1.1 | No |
| v-mathematical | font-face | Not used in rendering but checked during parsing. | 1.1 | No |
| values | animate, animateColor, animateTransform, animateMotion, feColorMatrix | | 1.1 | Yes |
| version | svg | Always uses the same interpretation of the SVG | 1.1 | No |
| vert-adv-y | font, glyph, missing-glyph | | 1.1 | Yes |
| vert-origin-x | font, glyph, missing-glyph | Origin is always (0,0). | 1.1 | No |
| vert-origin-y | font, glyph, missing-glyph | Origin is always (0,0). | 1.1 | No |
| viewBox | svg, symbol, marker, pattern, view | | 1.1 | Yes |
| viewTarget | view | | 1.1 | No |
| width | svg, use, pattern, mask, filter, feMerge, feTurbulence | | 1.1 | Yes |
| widths | font-face | Not used in rendering but checked during parsing. | 1.1 | No |
| x | glyphRef, fePointLight, feSpotLight, text, tspan, tref, altGlyph, svg, use, image, rect, pattern, mask, filter, feMerge, feTurbulence, cursor, foreignObject | | 1.1 | Yes |
| x-height | font-face | Not used in rendering but checked during parsing. | 1.1 | No |
| x1 | line, linearGradient | | 1.1 | Yes |
| x2 | line, linearGradient | | 1.1 | Yes |
| xChannelSelector | feDisplacementMap | | 1.1 | Yes |
| xlink:actuate | tref, textPath, altGlyph, glyphRef, color-profile, linearGradient, radialGradient, pattern, filter, cursor, script, mpath, font-face-uri, definition-src, use, image, feImage, a | | 1.1 | No |
| xlink:arcrole | tref, textPath, altGlyph, glyphRef, color-profile, linearGradient, radialGradient, pattern, filter, cursor, script, mpath, font-face-uri, definition-src, use, image, feImage, a | | 1.1 | No |
| xlink:href | glyphRef, color-profile, linearGradient, radialGradient, pattern, filter, script, animElementAttrs, altGlyph, use, image, tref, textPath, feImage, cursor, a, mpath, font-face-uri, definition-src | | 1.1 | Yes |
| xlink:role | tref, textPath, altGlyph, glyphRef, color-profile, linearGradient, radialGradient, pattern, filter, cursor, script, mpath, font-face-uri, definition-src, use, image, feImage, a | | 1.1 | No |
| xlink:show | tref, textPath, altGlyph, glyphRef, color-profile, linearGradient, radialGradient, pattern, filter, cursor, script, mpath, font-face-uri, definition-src, use, image, feImage, a | | 1.1 | Yes |
| xlink:title | tref, textPath, altGlyph, glyphRef, color-profile, linearGradient, radialGradient, pattern, filter, cursor, script, mpath, font-face-uri, definition-src, use, image, feImage, a | | 1.1 | Yes |
| xlink:type | tref, textPath, altGlyph, glyphRef, color-profile, linearGradient, radialGradient, pattern, filter, cursor, script, mpath, font-face-uri, definition-src, use, image, feImage, a | | 1.1 | No |
| xml:base | altGlyphDef, altGlyphItem, font-face-src, metadata, svg, g, defs, desc, title, symbol, use, image, switch, style, path, rect, circle, ellipse, line, polyline, polygon, text, tspan, tref, textPath, altGlyph, glyphRef, marker, color-profile, linearGradient, radialGradient, stop, pattern, clipPath, mask, filter, feDistantLight, fePointLight, feSpotLight, feBlend, feColorMatrix, feComponentTransfer, feFuncR, feFuncG, feFuncB, feFuncA, feComposite, feConvolveMatrix, feDiffuseLighting, feDisplacementMap, feFlood, feGaussianBlur, feImage, feMerge, feMergeNode, feMorphology, feOffset, feSpecularLighting, feTile, feTurbulence, cursor, a, view, script, animate, set, animateMotion, mpath, animateColor, animateTransform, font, glyph, missing-glyph, hkern, vkern, font-face, font-face-uri, font-face-format, font-face-name, definition-src, foreignObject | | 1.1 | Yes |
| xml:space | svg, g, defs, desc, title, symbol, use, image, switch, path, rect, circle, ellipse, line, polyline, polygon, text, tspan, tref, textPath, altGlyph, marker, pattern, clipPath, mask, filter, feImage, a, foreignObject, style | | 1.1 | Yes |
| xmlns | svg | | 1.1 | Yes |
| xmlns:xlink | a | | 1.1 | Yes |
| y | svg, use, image, rect, pattern, mask, filter, feMerge, feTurbulence, foreignObject, cursor, text, tspan, tref, altGlyph, glyphRef, fePointLight, feSpotLight | | 1.1 | Yes |
| y1 | line, linearGradient | | 1.1 | Yes |
| y2 | line, linearGradient | | 1.1 | Yes |
| yChannelSelector | feDisplacementMap | | 1.1 | Yes |
| z | feSpotLight, fePointLight | | 1.1 | Yes |
| zoomAndPan | svg, view | | 1.1 | Yes |
Copyright Opera Software ASA. All rights reserved. 