Porsche Design System
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ConfiguratorExamplesUsageAccessibilityAPI
Button Tile Table of Contents Accessibility support Keyboard Key / stateFunctionTab, Shift-TabMoves focus to the next (or previous) focusable element.Enter, SpaceActivates the button.disabledButton still focusable. ARIA enhancements External ARIA provided by the aria property: ARIAUsagearia-labelDefines a string value that labels an interactive element. It's required for buttons with hideLabel="true".aria-descriptionDefines a string value that adds a more detailed description of the interactive element.aria-expandedExposes a visual state (e.g. expanded/collapsed) of another element.aria-pressedExposes the pressed state of a toggle button.aria-haspopupDefines that the button opens a popup (e.g. dialog). It can be used in combination with aria-expanded to indicate the state of the popup. Limitations Due to the nature of Web Components and shadowDOM, there are limitations in the usage of some ARIA attributes if they try to set relationship between elements in different shadowDOM's or shadowDOM/lightDOM combinations. ARIASupportaria-labelledby🚫aria-describedby🚫aria-owns🚫aria-controls🚫aria-activedescendant🚫 Development considerations Labelling If the text of the button does not clearly indicate what the button's function is, add a brief, descriptive label using the aria property with the aria-label value to provide more context for e.g. screen reader users. Phrases like "Detail" or "Open" can be unclear when read out of context by a screen reader. In such instances, provide an alternative text that offers more detailed information, such as "Open details of product XYZ." Readable text In general, placing textual contents above an image or video can easily lead to contrast issues. Though we are providing a scalable background gradient to reduce the risk of low contrasts between foreground text and background image, there still can occur issues with color contrast ratios, especially if different aspect ratios for multiple viewport sizes are used. So, always check readability and play around with the size and weight properties to achieve the best results. Video background In case a video background is used, the component checks whether reduced motion is enabled in the operating system settings and prevents the <video autoplay loop /> attribute from working to improve accessibility & UX. In addition, the slotted video should have no audio or is muted by <video muted />. Also keep in mind that long videos or videos in general might increase the page load time. The video content should support the CTA instead of distracting from it. To support screen reader users, it's recommended to define an alternative video description <video aria-label="Some video description"" />. Tests Automated TechnologySupportAXE-Core (WCAG 2.2 AA, Best-Practice)✅High-Contrast Mode (light/dark)✅Text-Zoom (200%)✅ Manual TechnologySupportKeyboard✅Screen reader (VoiceOver, NVDA)✅
Global settingsThemeChanges the theme of the application and any Porsche Design System component. It's possible to choose between forced theme light and dark. It's also possible to use auto, which applies light or dark theme depending on the operating system settings automatically.LightDarkAuto (sync with operating system)DirectionThe dir global attribute in HTML changes the direction of text and other content within an element. It's most often used on the <html> tag to set the entire page's direction, which is crucial for supporting languages that are written from right to left (RTL), such as Arabic and Hebrew. For example, using <html dir="rtl"> makes the entire page display from right to left, adjusting the layout and text flow accordingly.LTR (left-to-right)RTL (right-to-left)Text ZoomTo ensure accessibility and comply with WCAG 2.2 AA standards, it is mandatory for web content to support text resizing up to at least 200% without loss of content or functionality. Using relative units like rem is a best practice for achieving this, as they allow the text to scale uniformly based on the user's browser settings.100%130%150%200%