Accessibility for developers: ARIA and the Accessibility Tree

An introduction to the key aspects of web accessibility and inclusive design, relevant to web developers

Date and time

Thursday 22 October - 13:00 to 14:30 BST

While not compulsory, prospective attendees of the ARIA and the Accessibility Tree session may also wish to attend the following sessions in the Accessibility for Developers series:


  • Online - this course is delivered via the Zoom platform


  • The course will be delivered with live captions
  • We can share slides in advance if required
  • A captioned recording with transcript will be shared with attendees after the live event

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Please note: after purchasing a ticket you are able to reassign the ticket, if somebody different to the ticket purchaser will be attending the training.

Why you should attend

Our training helps your team deliver accessible and inclusive products and services first time, every time, by embedding best practice in your processes and offering valuable insights to every member of your teams.

We'll show you some of the most common reasons that an app or website will fail the standard accessibility tests, and we'll also show you how to avoid them. Accessible development is a broad subject and this course will focus on looking briefly at ARIA and the accessibility tree, the name, role and value of custom controls, ways to hide content and how to correctly use aria-live.

By thinking about accessibility and inclusion from the start you can prevent costly fixes at the end of a project, and also improve the user experience for everyone, not just your disabled customers.

Who is this training for

This course is primarily aimed at front-end developers, but may also be of interest to designers and managers who wish to better understand how certain design considerations may impact the overall development.

The level of training is intermediate - you will need some awareness of accessibility standards and this course will focus on how these can be applied.

What will be covered

Attendees will learn accessibility topics including:

  • The Accessibility Tree
  • What is ARIA and how to use it
  • Name, Role, Value and how to apply it
  • Hiding content
  • ARIA-live

At the end of this course you will know how to:

  • Understand the accessibility tree and how the name, role and value of custom components influences accessibility
  • Hide content whilst being mindful of screen reader users
  • Correctly implement aria-live to announce content

Important information

Class size

  • We limit the number of people on our training courses to ensure all attendees can engage with the presenter, ask questions and have an informative experience

What to bring

  • You will need a good internet connection, access to a laptop or desktop computer and to be able to open/use the Zoom platform without restrictions on your device

Why train with us?

97% of attendees rated our webinars and training ‘Excellent' or ’Good’ in 2019

Attendees will receive a link to the recording of the training to watch back at your leisure after the event. (And you’ll always have access to the latest advice as we will update the content on the link when the training is repeated in the future.)

“I’ve found the sessions useful in bringing the range of accessibility issues to our attention, from website navigation to ensuring that images are meaningful to the visually impaired… I’d say that the training is essential for those responsible for the content of public websites.”

Meet our trainer

Image of James Nash

James Nash is a Senior Accessibility & Usability Consultant with AbilityNet. He's been working on the web since 1998 as a designer, a front-end developer, UX Prototyper and Technical Lead at both agencies and FTSE250 companies including He has an abiding passion for accessibility and web standards, and believes in creating a more accessible world for everyone.
James manages a small team of accessibility consultants in delivering accessibility consultancy ranging from technical audits and user tests, through to ongoing involvement in accessibility of agile projects.

About our training team

Our trainers have decades of experience between them. They deliver accessibility consultancy ranging from technical audits and user tests, through to ongoing involvement in the accessibility of enterprise-level agile projects. They regularly champion accessibility at conferences, lead webinars, and run workshops.