What aspect of web content does ARIA primarily aim to improve?

ARIA, or Accessible Rich Internet Applications, is primarily designed to enhance the accessibility of web content for users with disabilities. It provides a set of attributes that can be added to HTML elements to give assistive technologies, such as screen readers, additional context about the structure and functionality of web applications. By using ARIA roles, properties, and states, developers can convey important information about dynamic content or complex user interfaces that would not be easily perceivable through standard HTML alone.

Users with disabilities, such as those who are blind or have low vision, rely on these assistive technologies to navigate web content effectively. ARIA plays a crucial role in ensuring that applications are perceivable, operable, and understandable, thus significantly improving the user experience for these individuals.

While code efficiency, visual aesthetics, and browser compatibility are important aspects of web development, they are not the primary focus of ARIA. The essence of ARIA is to foster inclusivity by making web applications accessible to everyone, fulfilling both legal and ethical obligations to provide equal access to information and services.