<p>On your Mac, save the document by pressing the <kbd><kbd>Command</kbd>+<kbd>S</kbd></kbd> keys.</p>
The above example demonstrates usage of the
<kbd> element represents user input. This is typically keyboard input, but it could also be other input, such as voice commands.
The W3C specifies the usage as follows:
<kbd>element is nested inside a
<samp>element, it represents the input as it was echoed by the system.
<kbd>element contains a
<samp>element, it represents input based on system output, for example invoking a menu item.
<kbd>element is nested inside another
<kbd>element, it represents an actual key or other single unit of input as appropriate for the input mechanism.