Accessibility: recommended alt-text convention for SVG and MathML? HTML5 now allows and markup with an HTML document without depending on external namespaces (decent overview here). Both have their own alt-attribute analogs (see below) which are effectively ignored by today’s screen-reader software. Thus, these elements are inaccessible to blind users. http://stackoverflow.com/questions/4697100/accessibility-recommended-alt-text-convention-for-svg-and-mathml