Bootstrap/site/docs/4.2/utilities/screenreaders.md

layout	title	description	group
docs	Screenreaders	Use screenreader utilities to hide elements on all devices except screen readers.	utilities

Hide an element to all devices except screen readers with .sr-only. Combine .sr-only with .sr-only-focusable to show the element again when it's focused (e.g. by a keyboard-only user). Can also be used as mixins.

{%- comment -%} Necessary for following [accessibility best practices]({{ site.baseurl }}/docs/{{ site.docs_version }}/getting-started/#accessibility). {%- endcomment -%}

{% capture example %} Skip to main content {% endcapture %} {% include example.html content=example %}

{% highlight scss %} // Usage as a mixin .skip-navigation { @include sr-only; @include sr-only-focusable; } {% endhighlight %}