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Chemistry LibreTexts

7.2.29: Image Pairing (Requires Alternative Activity)

  • Page ID
    357245
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    Query \(\PageIndex{1}\)

    Overall Usability

    Requires Alternative Activity:

    • This activity is not usable by some users.

    Important Reminders

    The activity may be usable if an alternative accessible activity is provided that may be:

    • used with the keyboard
    • used with screen reading software
    • used with magnification up to 200% and up to 400% without loss of content or functionality and without requiring horizontal scrolling.

    Visible Indication of Focus

    The activity buttons have a visible indication of focus.

    Color Contrast

    The visible indication of focus does not have good contrast.  The visible indication of focus is a thin black line.  Users who require a visible indication of focus with more contrast may use assistive technology.  The color contrast of meaningful visual elements and text with backgrounds must be ensured manually by the content author.

    Keyboard Usability

    The activity is not usable with the keyboard.  After the first images are matched, there is no way to match additional images using the keyboard.

    No Keyboard Traps

    There are no keyboard traps.

    Magnification

    When content magnifies up to 200% or up to 400% using browser settings content is obscured.

    An alternative version of the content should be included that supports magnification up to 200% and up to 400% without requiring horizontal scrolling to view content and interact with content.

    Usability with Screen Reading Software

    The activity is not usable with screen reading software.  After the first images are matched, there is no way to match additional images using the keyboard.


    7.2.29: Image Pairing (Requires Alternative Activity) is shared under a CC BY 4.0 license and was authored, remixed, and/or curated by LibreTexts.

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