Assistive technology users should be able to detect when important changes occur on a web page, With the use of a status message, information can be provided to the user without changing focus or unnecessarily interrupting their work. The following are the kinds of status messages to provide:
Placement of controls affects their ease of use. For example, for a search feature, the “submit” button should be positioned right after the input field. Appearance and positioning are particularly important when providing a control that supports “destructive” actions, such as a “delete” or “clear” button. In these cases, ensure that these controls are clearly differentiated .... Read more about ✎ Technique: Differentiating controls
Autocomplete widgets can be helpful for accessibility because they can make it easier to enter text by providing suggestions based on the characters initially typed. This particularly helps people who find typing more difficult and people who may be susceptible to spelling mistakes.
Creating an accessible integrated autocomplete widget is a complex process. You need to ensure that screen-reader users are notified when the list of suggestions appears and that they can enter the list and select an option using the keyboard...
Providing form feedback accessibly helps users submit data more accurately and reduces the chance for error. For learning resources, easy access to feedback supports the learning process; for forms collecting data, good feedback helps to reduce the chance of input errors being made.
Modal dialogs can enhance usability by focusing attention on a specific message that requires a user action to continue.
Expandables (sometimes called “collapsible” or “disclosure widgets”) are simple interface patterns that allow you to expand and collapse content. They can be helpful accessibility aids as they give users the choice of revealing content to read it, or bypassing the content, making page navigation more efficient for screen-reader users and people using the keyboard or alternative input devices.
To ensure that they are accessible, it's important that expandable sections are coded so that their state (expanded or collapsed) and...
Accessible names are the labels given to HTML elements that can be announced in assistive technologies such as screen readers. They may or may not be visible to sighted interface users, depending on context.
Whether you provide controls using standard HTML elements or create custom controls, ensure that controls are given appropriate names. There are a number of ways to provide accessible names.
Icon fonts are a popular and effective method for providing scalable symbols that can be used to label controls and provide graphical information. The information provided by icons also needs to be available to people who can’t see them.