Attribute name Used in elements/entities Comments accent-height font-face Not used in rendering but checked during parsing. accumulate feImage, svg, g, defs, symbol, use, switch, marker, pattern, mask, filter, a, font, glyph, missing-glyph, foreignObject, text, tspan, tref, textPath, altGlyph, clipPath alphabetic font-face Not used in rendering but checked during parsing. amplitude feFuncR, feFuncG, feFuncB, feFuncA arabic-form glyph ascent font-face attributeType animate, set, animateColor, animateTransform azimuth feDistantLight baseFrequency feTurbulence baseProfile svg Not used in rendering. bbox font-face Not used in rendering but checked during parsing. bias feConvolveMatrix by animate, animateColor, animateTransform, animateMotion calcMode animateMotion cap-height font-face Not used in rendering but checked during parsing. class all elements clipPathUnits clipPath contentScriptType svg contentStyleType svg cx circle, ellipse, radialGradient cy circle, ellipse, radialGradient d glyph, missing-glyph, path descent font-face diffuseConstant feDiffuseLightning direction feImage, svg, g, defs, symbol, use, switch, marker, pattern, mask, filter, a, font, glyph, missing-glyph, foreignObject, text, tspan, tref, textPath, altGlyph, clipPath divisor feConvolveMatrix dur animate, set, animateMotion, animateColor, animateTransform dx text, tspan, tref, altGlyph, glyphRef, feOffset dy text, tspan, tref, altGlyph, glyphRef, feOffset edgeMode feConvolveMatrix editable text, textArea elevation feDistantLight end animate, set, animateMotion, animateColor, animateTransform exponent feFuncR, feFuncG, feFuncB, feFuncA 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 fill animate, set, animateMotion, animateColor, animateTransform filterRes filter filterUnits filter focusable a, animation, circle, ellipse, foreignObject, g, image, line, path, polygon, polyline, rect, svg, switch, text, textArea, tspan, use, video focusHighlight a, animation, circle, ellipse, foreignObject, g, image, line, path, polygon, polyline, rect, svg, switch, text, textArea, tspan, use, video font-family font-face font-size font-face font-stretch font-face font-style font-face font-variant font-face font-weight font-face format altGlyph, glyphRef The altGlyph and glyphRef elements are not supported from animate, animateColor, animateTransform, animateMotion fx radialGradient fy radialGradient g1 hkern, vkern g2 hkern, vkern glyph-name glyph glyphRef altGlyph, glyphRef The altGlyph and glyphRef elements are not supported gradientTransform radialGradient, linearGradient gradientUnits radialGradient, linearGradient hanging font-face Not used in rendering but checked during parsing. height svg, filter, feMerge, feTurbulence, use, pattern, mask, rect, foreignObject, image horiz-adv-x glyph, missing-glyph, font horiz-origin-x glyph, missing-glyph, font Origin is always at (0,0) horiz-origin-y glyph, missing-glyph, font Origin is always at (0,0) ideographic font-face Not used in rendering but checked during parsing. in feComponentTransfer, feFlood, feTile, feBlend, feColorMatrix, feComposite, feConvolveMatrix, feDiffuseLighting, feDisplacementMap, feGaussianBlur, feMorphology, feOffset, feSpecularLighting, feMergeNode in2 feBlend, feComposite, feDisplacementMap initialVisibility video, animation Not used in rendering but checked during parsing. intercept feFuncR, feFuncG, feFuncB, feFuncA k hkern, vkern k1 feComposite k2 feComposite k3 feComposite k4 feComposite kernelMatrix feConvolveMatrix kernelUnitLength feConvolveMatrix, feDiffuseLighting, feSpecularLighting keyPoints animateMotion keySplines animate, animateColor, animateTransform, animateMotion keyTimes animate, animateColor, animateTransform, animateMotion lang glyph Language information not used when selecting glyphs. lengthAdjust textPath, text, tspan, tref limitingConeAngle feSpotLight local color-profile markerHeight marker markerUnits marker markerWidth marker maskContentUnits mask maskUnits mask mathematical font-face Not used in rendering but checked during parsing. max animate, set, animateMotion, animateColor, animateTransform media style method textPath min animate, set, animateMotion, animateColor, animateTransform mode feBlend name color-profile nav-down a, animation, circle, ellipse, foreignObject, g, image, line, path, polygon, polyline, rect, svg, switch, text, textArea, tspan, use, video nav-down-left a, animation, circle, ellipse, foreignObject, g, image, line, path, polygon, polyline, rect, svg, switch, text, textArea, tspan, use, video nav-down-right a, animation, circle, ellipse, foreignObject, g, image, line, path, polygon, polyline, rect, svg, switch, text, textArea, tspan, use, video nav-left a, animation, circle, ellipse, foreignObject, g, image, line, path, polygon, polyline, rect, svg, switch, text, textArea, tspan, use, video nav-next a, animation, circle, ellipse, foreignObject, g, image, line, path, polygon, polyline, rect, svg, switch, text, textArea, tspan, use, video nav-prev a, animation, circle, ellipse, foreignObject, g, image, line, path, polygon, polyline, rect, svg, switch, text, textArea, tspan, use, video nav-right a, animation, circle, ellipse, foreignObject, g, image, line, path, polygon, polyline, rect, svg, switch, text, textArea, tspan, use, video nav-up a, animation, circle, ellipse, foreignObject, g, image, line, path, polygon, polyline, rect, svg, switch, text, textArea, tspan, use, video nav-up-left a, animation, circle, ellipse, foreignObject, g, image, line, path, polygon, polyline, rect, svg, switch, text, textArea, tspan, use, video nav-up-right a, animation, circle, ellipse, foreignObject, g, image, line, path, polygon, polyline, rect, svg, switch, text, textArea, tspan, use, video numOctaves feTurbulence offset stop, feFuncR, feFuncG, feFuncB, feFuncA onabort svg 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. onbegin animate, set, animateMotion, animateColor, animateTransform onclick g, defs, symbol, switch, svg, use, image, path, rect, circle, ellipse, line, polyline, polygon, text, tspan, tref, textPath, altGlyph, a, foreignObject onend animate, set, animateMotion, animateColor, animateTransform onerror animate, set, animateMotion, animateColor, animateTransform onfocusin g, defs, symbol, switch, svg, use, image, path, rect, circle, ellipse, line, polyline, polygon, text, tspan, tref, textPath, altGlyph, a, foreignObject onfocusout g, defs, symbol, switch, svg, use, image, path, rect, circle, ellipse, line, polyline, polygon, text, tspan, tref, textPath, altGlyph, a, foreignObject onload g, defs, symbol, switch, svg, use, image, path, rect, circle, ellipse, line, polyline, polygon, text, tspan, tref, textPath, altGlyph, a, foreignObject onmousedown g, defs, symbol, switch, svg, use, image, path, rect, circle, ellipse, line, polyline, polygon, text, tspan, tref, textPath, altGlyph, a, foreignObject onmousemove g, defs, symbol, switch, svg, use, image, path, rect, circle, ellipse, line, polyline, polygon, text, tspan, tref, textPath, altGlyph, a, foreignObject onmouseout g, defs, symbol, switch, svg, use, image, path, rect, circle, ellipse, line, polyline, polygon, text, tspan, tref, textPath, altGlyph, a, foreignObject onmouseover g, defs, symbol, switch, svg, use, image, path, rect, circle, ellipse, line, polyline, polygon, text, tspan, tref, textPath, altGlyph, a, foreignObject onmouseup g, defs, symbol, switch, svg, use, image, path, rect, circle, ellipse, line, polyline, polygon, text, tspan, tref, textPath, altGlyph, a, foreignObject 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. onresize svg onscroll svg onunload svg The event listener is registered, but currently the event itself is never dispatched in Opera. onzoom svg operator feMorphology, feComposite order feConvolveMatrix orient marker orientation glyph overline-position font-face overline-thickness font-face panose-1 font-face Not used in rendering but checked during parsing. path animateMotion pathLength path patternContentUnits pattern patternTransform pattern patternUnits pattern points polyline, polygon pointsAtX feSpotLight pointsAtY feSpotLight pointsAtZ feSpotLight preserveAlpha feConvolveMatrix preserveAspectRatio svg, symbol, image, marker, pattern, view primitiveUnits filter r radialGradient, circle radius feMorphology refX marker refY marker rendering-intent color-profile repeatCount animate, set, animateMotion, animateColor, animateTransform repeatDur animate, set, animateMotion, animateColor, animateTransform 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 requiredFeatures 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 requiredFonts a, animate, animateColor, animateMotion, animateTransform, animation, audio, circle, discard, ellipse, foreignObject, g, image, line, path, polygon, polyline, rect, set, switch, text, textArea, tspan, use, video requiredFormats a, animate, animateColor, animateMotion, animateTransform, animation, audio, circle, discard, ellipse, foreignObject, g, image, line, path, polygon, polyline, rect, set, switch, text, textArea, tspan, use, video restart animate, set, animateMotion, animateColor, animateTransform result feMerge, feTurbulence rotate animateMotion, text, tspan, tref, altGlyph rx rect, ellipse ry rect, ellipse scale feDisplacementMap seed feTurbulence slope feFuncR, feFuncG, feFuncB, feFuncA slope font-face Not used in rendering but checked during parsing. snapshotTime svg Not used in rendering but checked during parsing. spacing textPath specularConstant feSpecularLighting specularExponent feSpecularLighting, feSpotLight spreadMethod linearGradient, radialGradient startOffset textPath stdDeviation feGaussianBlur specularConstant feSpecularLighting stemh font-face Not used in rendering but checked during parsing. stemv font-face Not used in rendering but checked during parsing. stitchTiles feTurbulence strikethrough-position font-face strikethrough-thickness font-face 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 surfaceScale feDiffuseLighting, feSpecularLighting syncBehavior audio, video, animation Parsing only. syncBehaviorDefault audio, video, animation Parsing only. syncMaster audio, video, animation syncTolerance audio, video, animation syncToleranceDefault audio, video, animation 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 tableValues feFuncR, feFuncG, feFuncB, feFuncA target a targetX feConvolveMatrix targetY feConvolveMatrix textLength text, tspan, tref, textPath title style to animate, animateColor, animateTransform, animateMotion, set transform g, defs, use, image, switch, path, rect, circle, ellipse, line, polyline, polygon, text, clipPath, a, foreignObject type feTurbulence, feColorMatrix, feFuncR, feFuncG, feFuncB, feFuncA, animateTransform, script, style, handler u1 hkern, vkern u2 hkern, vkern underline-position font-face underline-thickness font-face unicode glyph unicode-range font-face Font selection based on presence of glyphs in unicode blocks. units-per-em font-face v-alphabetic font-face Not used in rendering but checked during parsing. v-hanging font-face Not used in rendering but checked during parsing. v-ideographic font-face Not used in rendering but checked during parsing. v-mathematical font-face Not used in rendering but checked during parsing. values animate, animateColor, animateTransform, animateMotion, feColorMatrix version svg Always uses the same interpretation of the SVG. vert-adv-y font, glyph, missing-glyph vert-origin-x font, glyph, missing-glyph Origin is always (0,0). vert-origin-y font, glyph, missing-glyph Origin is always (0,0). viewBox svg, symbol, marker, pattern, view viewTarget view width svg, use, pattern, mask, filter, feMerge, feTurbulence widths font-face Not used in rendering but checked during parsing. x glyphRef, fePointLight, feSpotLight, text, tspan, tref, altGlyph, svg, use, image, rect, pattern, mask, filter, feMerge, feTurbulence, cursor, foreignObject x-height font-face Not used in rendering but checked during parsing. x1 line, linearGradient x2 line, linearGradient xChannelSelector feDisplacementMap xlink:actuate tref, textPath, altGlyph, glyphRef, color-profile, linearGradient, radialGradient, pattern, filter, cursor, script, mpath, font-face-uri, definition-src, use, image, feImage, a xlink:arcrole tref, textPath, altGlyph, glyphRef, color-profile, linearGradient, radialGradient, pattern, filter, cursor, script, mpath, font-face-uri, definition-src, use, image, feImage, a 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 xlink:role tref, textPath, altGlyph, glyphRef, color-profile, linearGradient, radialGradient, pattern, filter, cursor, script, mpath, font-face-uri, definition-src, use, image, feImage, a xlink:show tref, textPath, altGlyph, glyphRef, color-profile, linearGradient, radialGradient, pattern, filter, cursor, script, mpath, font-face-uri, definition-src, use, image, feImage, a xlink:title tref, textPath, altGlyph, glyphRef, color-profile, linearGradient, radialGradient, pattern, filter, cursor, script, mpath, font-face-uri, definition-src, use, image, feImage, a xlink:type tref, textPath, altGlyph, glyphRef, color-profile, linearGradient, radialGradient, pattern, filter, cursor, script, mpath, font-face-uri, definition-src, use, image, feImage, a 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 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 xmlns svg xmlns:xlink a y svg, use, image, rect, pattern, mask, filter, feMerge, feTurbulence, foreignObject, cursor, text, tspan, tref, altGlyph, glyphRef, fePointLight, feSpotLight y1 line, linearGradient y2 line, linearGradient yChannelSelector feDisplacementMap z feSpotLight, fePointLight zoomAndPan svg, view