Operability only when navigation sequences affect meaning and operability. Focusable components need to receive focus in an order that preserves meaning and.Sets of users and does not appear to either of them to jump around randomly. Care should be taken so that the focus order makes sense to both of these Order, while a sighted keyboard user interacts with the visual presentation of the Should carefully consider all these users as they design their Web pages.įor example, a screen reader user interacts with the programmatically determined reading Presentations may find it difficult to understand or operate the Web page. However, when the order of a particular presentationĭiffers from the programmatically determined reading order, users of one of these Since there may be several possible logical reading orders for the content, (see Success Criterion 1.3.2) as long as the user can still understand and operate The focus order may not be identical to the programmatically determined reading order This navigation sequence follows the expected sequence forĪ tree control - as additional items get expanded or collapsed, they are added or The right arrow key may expand a node, then using the down arrow key, will move into The user can use the up and down arrow keys to move from tree node to tree node. Section 17.11, "Giving focus to an element").Īn example of keyboard navigation that is not the sequential navigation addressedīy this Success Criterion is using arrow key navigation to traverse a tree component. The order that components appear in the content stream. If no scripting or tabindex attributes are used, the navigation order is Scripting along with the addition of a tabindex attribute to allow focus to additionalĮlements. Dynamic HTML may modify the navigation sequence using For example, simple HTML defines sequential navigation The way that sequential navigation order is determined in Web content is defined by Either order may satisfy this Success Criterion. For example, moving throughĬomponents in a table one row at a time or one column at a time both reflect the logical Orders that reflect logical relationships in the content. This reduces confusionīy letting users form a consistent mental model of the content. Meaning of the content and can be operated from the keyboard. Through content, they encounter information in an order that is consistent with the The intent of this Success Criterion is to ensure that when users navigate sequentially Success Criterion 2.4.3 Focus Order (Level A): If a Web page can be navigated sequentially and the navigation sequences affect meaning or operation, focusable components receiveįocus in an order that preserves meaning and operability. Understanding Success Criterion 2.4.3: Focus Order
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