deque.com: target size

2 min read 21-10-2024

Deque.com: Target Size - Navigating the Web Accessibility Landscape

Deque.com, a leading provider of accessibility testing and consulting services, has become synonymous with navigating the complex world of web accessibility. Their "Target Size" concept is particularly relevant in the design and development of websites and applications.

What is Deque's Target Size?

Target size, as defined by Deque, refers to the minimum clickable area required for a user to interact effectively with a website element. It's a critical consideration for accessibility because it directly impacts users with motor impairments, who may struggle with precise mouse movements or touch interactions.

This concept is explained well in a Github issue, where a user inquires about the "minimum size for interactive elements":

User: What is the minimum size for interactive elements?

Deque Response: "The target size of an interactive element is the clickable area that a user must be able to accurately hit with a mouse or touch screen. The recommended minimum target size for interactive elements is 44 pixels by 44 pixels. This allows users with fine motor control difficulties to easily interact with the element."

Source: https://github.com/deque/axe-core/issues/1839

Why is Target Size Important?

Let's analyze the reasons why target size matters:

Users with Motor Impairments: As highlighted by the Github response, users with fine motor control challenges struggle with small, cramped interactive elements. A larger target size allows them to click or tap more accurately, improving their user experience.
Touchscreen Devices: With the widespread use of smartphones and tablets, target size becomes even more critical. Tiny elements can be difficult to tap accurately, especially on smaller screens.
Improved Usability: Even for users without disabilities, larger target sizes can lead to a more intuitive and user-friendly experience.

Practical Examples

Consider these real-world examples:

Buttons: A button with a 20px by 20px area is significantly more challenging to click than a button with a 44px by 44px area.
Links: A link embedded in a single word or phrase can be hard to differentiate, making it difficult for users to select. A larger target size around the link text ensures easier selection.
Dropdown Menus: Tiny dropdown arrows can be frustrating to interact with. A larger target size for the arrow makes it more accessible and user-friendly.

Tools and Resources

Deque offers various tools and resources to help developers implement best practices for target size:

Axe-Core: This open-source accessibility testing engine can be used to identify target size issues.
Deque University: Their online learning platform provides comprehensive training on web accessibility, including detailed information on target size.

Conclusion

By prioritizing target size, developers and designers can create more inclusive and accessible websites and applications. Deque's guidance and resources empower them to build digital experiences that work for everyone.

Remember, achieving true accessibility requires a holistic approach. While target size is a key aspect, it's crucial to consider other accessibility guidelines, such as color contrast, keyboard navigation, and alternative text.

deque.com: target size