Digital learning offerings should convey knowledge – not exclude. Yet that is exactly what happens when eLearning is not accessible or is barely usable on mobile devices. The good news: With a bit of know-how and the right planning, you can create content that is inclusive AND flexible. A real win for everyone – and a must for modern learning offerings.
Accessibility – more than just an extra
Accessibility in eLearning means that everyone can use content independently – whether they have physical impairments, learning barriers, or specific technical requirements. At the same time, other users benefit as well: subtitles help, for example, in noisy environments or with content in a foreign language.
The 6 most important requirements for accessible eLearning:
- Subtitles & transcripts:
Written alternatives should be available for all audio and video content. This helps with hearing impairments, language barriers, and also makes it easier to quickly look things up. - Keyboard navigation:
All functions – navigation, buttons, quizzes – must be usable entirely without a mouse. The Tab and Enter keys are essential. - Screen reader compatibility:
Text, alt text, a clear heading structure – so screen readers can work reliably. Important: no images without descriptions and a semantically clean HTML structure. - Colour contrast & font sizes:
Light text on a light background? Better not. High contrast and scalable font sizes make content easier to read for everyone. - Do not rely on colour alone for visual cues:
Phrases such as “Click the green icon” are problematic. Colours should always be combined with shapes, symbols, or text. - Accessibility testing:
Tools such as the WAVE Accessibility Checker, Axe, or Storyline’s accessibility mode help with testing.
Our tip: The international WCAG 2.1 guidelines (Web Content Accessibility Guidelines) are a good reference framework.
Mobile use – a must, not optional
Over 70% of learners now access content on mobile devices. If you are planning eLearning modules, you should therefore ensure that everything is easy to read, navigate, and click – even on a smartphone or tablet.
What matters in responsive design:
- Content automatically adapts to different screen sizes
- Interactive elements are easy to use with a finger
- Font sizes and spacing are adjusted for smaller displays
- Media (e.g., videos) is automatically scaled
- No zigzag scrolling – mobile navigation must be intuitive
Tip: Test your eLearning on real devices – not only in a desktop simulator.
Compatibility – the quiet success factor
Accessibility and mobile optimisation are of no use if the eLearning does not run technically. Pay attention to the following points:
- Browser compatibility: Does the course work in Chrome, Edge, Safari & Co.?
- LMS compatibility: Are SCORM or xAPI supported correctly?
- Device diversity: Test on Windows, macOS, iOS, and Android
- Loading times: Short loading times are especially crucial on mobile
- Error messages: Clear, easy-to-understand guidance when issues occur (e.g., “Please rotate your device” instead of technical gibberish)
Conclusion: Inclusive eLearning reaches more people
Accessible and mobile-optimised eLearning is not a “nice-to-have”, but the standard in any professional learning environment. If you truly want to reach learners, you need to consider diversity, usability, and technical compatibility from the very beginning. The result: satisfied users – and eLearning that delivers.

Off to your eLearning adventure!
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