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Vernon Fowler

WebAIM: Semantic Structure - 0 views

  • Technically, lower degree headings should be contained within headings of the next highest degree (i.e., one should not skip heading levels, such as from an <h2> to an <h4>, going down the document).
  • one should not skip heading levels
Vernon Fowler

Contrast ratio in devtools - 0 views

  • To enable it (as of August 2017), you need the following steps: Use Chrome CanaryEnable experiments: chrome://flags/#enable-devtools-experiments
  • From devtools, open settings (F1)Open the experiments panelHit shift seven times (no, I'm not kidding)Check the "Color contrast ratio line in color picker"
Vernon Fowler

Understanding screen reader interaction modes - Tink - 0 views

  • the screen reader intercepts most keypresses before they reach the browser, triggering an interaction with the virtual document instead
  • up/down keys move focus to the previous/next line instead of scrolling the page
  • space key to select a checkbox
  • ...3 more annotations...
  • enter key is used to activate a link
  • Not all keypresses are captured by the screen reader however. When the tab key is pressed it is automatically passed through to the browser where it causes keyboard focus to move to the next piece of interactive content
  • Although this mode switching may seem unintuitive to someone unused to Windows screen readers, it works well in practice and most screen reader users are unaware of what’s happening “under the hood”.
Vernon Fowler

WebAIM: Links and Hypertext - Link Text and Appearance - 0 views

  • links are more useful when they make sense out of context
  • In most cases, it is better to use human-readable text instead of the URL.
  • The alternative text should convey the content of the image and the function of the link. In most cases, the content of the image and function of the link are the same, so this text can be very succinct (e.g, alt="Products").
  • ...6 more annotations...
  • When images are used as links, the alternative text performs the function of link text.
  • on both mouse hover and keyboard focus
  • they are also accustomed to seeing tabs and main navigational features (oftentimes created as graphics rather than text) without underlining. In these cases, the linked items should be designed so it is apparent that the user can click on them to perform an action.
  • Authors should avoid non-informative link phrases such as: click here here more read more link to [some link destination] info
  • adjacent links should have adequate whitespace (such as link CSS margins) between them to minimize users inadvertently clicking the wrong link
  • an alphabetical index may use each individual letter of the alphabet as a link
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