Web Accessibility

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Universal help

Even if you do not have a legally recognised disability or are not in a situation of temporary incapacity, if you have certain special needs or are elderly you may have some difficulties with accessing web content, encountering some barriers that affect different profiles of users with disabilities.

This section contains information on some of the solutions available for people with the most common kinds of disability.

If you have a visual impairment that makes it difficult to read content or interact with web pages, you can get a large screen monitor or use a screen amplifier.

The following table shows you how to change the size of the web page content in the most regularly used browsers:

Browser Keyboard shortcuts
Mozilla Firefox Enlarge: Ctrl and + Reduce: Ctrl and - Refresh: Ctrl and 0 Full screen: F11
Edge Enlarge: Ctrl and + Reduce: Ctrl and - Refresh: Ctrl and 0 Full screen: F11
Google Chrome Enlarge: Ctrl and + Reduce: Ctrl and - Refresh: Ctrl and 0 Full screen: F11
Safari Enlarge: ⌘ y + Reduce: ⌘ y - Refresh: you must clear the search history. Full screen: ⌘ + Ctrl y F

You can also follow these steps, depending on the browser, to alter the size of the browser text:

Browser Action to be taken
Mozilla Firefox Icon with three short lines > General > Font type > size
Google Chrome Icon with three bullet points > Appearance > Font size

You can set your computer to high contrast mode:

  • In Windows, by combining the Shift or Caps + Alt + print screen keys or by going to Control Panel and then Activity Centre, where you can activate the high-contrast settings.
  • In MacOS, go to Accessibility, then to the "Screen" section, and activate "Invert colours".
  • In Linux Gnome, go to Systems, then to Preferences and then to Appearance, and select one of the high contrast themes.

If you need alternatives for interacting with web pages because you have difficulty moving your upper limbs (hands or arms):

  • You can use a special keyboard or mouse (keyboards with large keys, conventional keyboard with an overlay, a large trackball mouse, button mouse, etc.).
  • If you need to press various keys at the same time but are unable to use both hands to do so, with some combinations (the "StickyKeys") you will be able to achieve this key combination by pressing a single key a certain number of times.
    • For example, these keys can be set to carry out certain functions ([Ctrl + Alt + Supr], [Alt + F4], etc.) in Windows using the StickyKeys or "special keys” functions.
    • The Control + Alt + Supr key combination can be achieved by pressing the Shift key five times.
    • You can set this in the GNOME environment for GNU/Linux by activating StickyKeys in the keyboard accessibility preferences window.
    • The macOS operating system lets you activate the options for slow keys or easy press keys in the "Accessibility" window in the "Keyboard” section.
  • You can change the functions that have been assigned to all the buttons on your pointer device, enabling you to assign the most important functions to the buttons that are most useful to you, as well as set the movement speed of the pointer device and adapt it to your handling capabilities.
    • In Windows, you can do this via: Control Panel > Accessibility centre and select the options that best adapt to your needs in "Easier mouse use".
    • MacOS lets you do this using the various options in the "Mouse and Trackpad" section in the Accessibility window.
  • You can set the keyboard to emulate some of the mouse actions:
    • In Windows, you can do this via: Control Panel > Accessibility centre and select the options that best suit your needs in "Easier keyboard use".
    • MacOS lets you do this using the various options in the "Keyboard" section in the Accessibility window.