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Fix:PhET simulations

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Accessibility enhancements for PhET interactive science simulations, including HTML5 canvas and SVG.

PhET provides fun, interactive, research-based simulations of physical phenomena for free. We believe that our research-based approach- incorporating findings from prior research and our own testing- enables students to make connections between real-life phenomena and the underlying science, deepening their understanding and appreciation of the physical world. University of Colorado Boulder.


%YAML 1.2
---
_CONFIG_:
    #name: PhET interactive simulations
    #description:
    includes:
        - http://phet.colorado.edu/*
    test_urls:
        - http://phet.colorado.edu/sims/html/balloons-and-static-electricity/latest/balloons-and-static-electricity_en.html
        - http://phet.colorado.edu/en/about
        - http://phet.colorado.edu/en/simulations/category/html

    about_urls:
        - "github.com:phetsims/balloons-and-static-electricity"
        # pypi.python.org:pypi?%3Aaction=list_classifiers
        - "creativecommons.org:licenses/by/3.0"
        - "gnu.org:licenses/gpl-2.0.html"
 
    # www.informit.com:articles/article.aspx?p=31837&seqNum=10
    namespaces:
        _: "www.w3.org:1999/xhtml"
        xlink: "www.w3.org:1999/xlink"
        svg: "www.w3.org:2000/svg"

    ignore_defaults: true
    ignore: "_CONFIG_"  #TODO !
    delay: 3000
 
 
# Fixes.
"#sim":
    role: application
    aria-label: PhET interactive simulation using HTML5 canvas and SVG. Requires mouse-dragging.
 
img#splash:
    title: Loading...
    style: "cursor:progress"
 
svg[width = 140][height = 460]:
    title: Grabbable balloon
    aria-label: Grabbable balloon
    aria-grabbed: false
    tabindex: 0
    _note: "w3.org:TR/wai-aria/states_and_properties#aria-grabbed"
 
# github.com:jquery/sizzle/issues/69
svg image[*|href *= 'balloon-yellow']:
    title: The balloon
    _note: "w3.org:TR/selectors-api2/#resolving-namespaces"

svg image[*|href *= 'phet-logo']:
    title: PhET logo

svg g[transform *= '3.14357']:  #Was: '0.97023'
    role: link
    title: PhET logo - links to PhET website, and 'About...' page
 
...

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