
This comes with practice, but if you think of the function of what you are building, it can give you a good idea as to what element you can use that would be much better than a div or a span. How Else Can You Make Your Markup More Accessible? Use as Many Semantic Elements as Possible The second rule of ARIA use does, however, suggest that if you must, you use a nested HTML element instead. You should not apply a contrasting role to an element that is already semantic, as adding a role overrides the native semantics of an element. Choose the role that best describes the function of your element. Can you have something that is both a button and a heading? No, it has to be one or the other. All roles are semantic in some way or another, and going by the definition above, an element cannot be two types of an object. This semantic association allows tools to present and support interaction with the object in a manner that is consistent with user expectations about other objects of that type.Īn HTML element cannot have two roles. Your Element Can Only Have One RoleĪn element should not have multiple ARIA roles. You can refer to this W3C table to check whether or not an ARIA attribute is required for a certain element. Now we are able to use nav in place of div, but we no longer need to add role="navigation" because this is already implied. Before semantic HTML elements existed, it was common to have elements such as. Elements such as nav, article and button have default implicit ARIA statements of role="navigation", role="article" and role="button" respectively. Use Semantic HTML Elements Where Possibleĭefault implicit ARIA semantics refers to semantics that are already applied to an element by the browser. You can read more about supported states and properties on the W3C website.īefore you get too keen, remember that we don’t want to be adding ARIA to every element, for a couple of reasons. We saw the opera Barber of Seville here! This can be done with the figure element as shown below. For cases when label text is visible, aria-labelledby is the more appropriate attribute to use. This is used when a label for a form element is not visible on the page (perhaps because it makes no sense to make it visible, or if the design dictates this). Īn example of an ARIA attribute that is a property is aria-label.

custom UI elements built with div and span tags). This is used to show the state of elements that are emulating interactive elements, such as checkboxes and radio buttons, but are not the native elements themselves (e.g.

If you imagine someone using a screen reader, think of the elements that they would not want read out. This one is my personal favorite, which is used when an element is simply for presentation.
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Please upgrade to the latest version of your browser for the best experience. The following example, often placed in a containing element, suggests that its content provides some information about the content within the containing element: Īn alert with dynamic content should use role="alert": The following example identifies the element as some kind of banner: They define the type of element and suggest what purpose it serves. ARIA roles are added to HTML markup like an attribute.
