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Many accessibility errors can only be caught by humans and hence online checkers should only be one part of the confirmation process. Note that the following accessibility checkers will only catch programmatic issues such as missing alt tags or improper contrast ratios. All labels within a table must be next to the data they are labeling (the current examples adhere to this pattern).Only use tables for tabular data (don’t use tables for styling purposes).However, these tables must be used appropriately in order to remain so. The current tables as defined in components are accessible. Headings must be hierarchical and properly nested (all h2’s within an h1, etc.) so as to maintain proper navigability for low or non-sighted users. Additional focus also needs to be taken on headings, labels and other items to guarantee an adherence to the page's navigability.If a rich text editor is used, the content author needs to be sure to follow good programming guidelines if using HTML (such as semantic markup and using appropriate labels).
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Rich text editors have the potential to easily break 508c compliance as many of the programmatic failsafes that exist will not happen within a rich text editor These should be used sparingly across the site.More about creating helpful hyperlinks can be found in the Harvard Library writing guide.Additionally links that are not links but items such as files, e-mail to links and phone numbers should be clearly labeled as such.The largest errors usually found here are on article preview links or similar instances where there may be multiple links on a page stating “read more” or other similar repeatable text.The purpose of a link can be determined from the link text alone or or from the text combined with programmatically determined content.Here are some tips to follow when selecting and using links on the Harvard Library website: Additional items such as a label, higher contrast or another visual cue must be used. If the label is removed then an alt tag with proper information must be appliedĬolor cannot be the only means of displaying information.If this guideline is followed then the alt tag should be left empty (but it should still exist).Current guidelines display all icons with a label underneath them.Note that iconography is a special type of image content. Include transcriptions of video or closed captioning.Note that items such as stock photography or landscapes are not considered purely decorative and must have the appropriate descriptors.In the event an image is purely decorative in nature, the alt tag must be present but should be left blank.Include alt tags or aria labels on all images that must describe what is happening within the image.
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All non-text content must have a text alternative on the page that displays the same information, for example:.For font sizes greater than 18 points (or 14 points if bold) contrast must be a minimum of 3:1.For font sizes under 18 point (or 14 points if bold) contrast must be a minimum of 4.5:1.Here are some tips to follow when selecting and using imagery for the Harvard Library website:
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For design purposes, the following must be met at a minimum, though there may be other applicable guidelines. Harvard Library must comply with the WCAG-AA web-standard. Curabitur gravida blandit semper.ĭesktop & Mobile: Lora Regular, #414141, 15px, line-height 26px Maecenas sit amet nulla non sem rutrum tincidunt eget eget magna. Sed dui nisi, congue sit amet mauris non, placerat tincidunt mauris. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Curabitur gravida blandit semper.ĭesktop: Lora Regular, #414141, 19px, line-height 32px Desktop: Trueno Bold, #1E1E1E, 60px, line-height 74pxĭesktop: Trueno Bold, #1E1E1E, 32px, line-height 42px, uppercase,ĭesktop & Mobile: Trueno Bold, #1E1E1E, 20px, line-height 30px,ĭesktop & Mobile: Trueno SemiBold, #1E1E1E, 20px, line-height 30px,ĭesktop & Mobile: Trueno SemiBold, #1E1E1E, 19px, line-height 29pxĭesktop & Mobile: Trueno SemiBold, #1E1E1E, 16px, line-height 28pxĭesktop: Lora Italic, #1E1E1E, 26px, line-height 40pxĭesktop: Trueno Light, #1E1E1E, 25px, line-height 42px