This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.
This proprietary property is specific to Internet Explorer and Microsoft Edge.
onkeyup, to listen for your declared accelerator keys and activate the element accordingly.
<button x-ms-acceleratorkey="[explanation of key combination]">…</button>
The accelerator key combination. For example:
"Ctrl+B"for a combination of the Ctrl and B keys.
"J"for just the J key.
"Ctrl+; then K"for a shortcut similar to FogBugz’s old keyboard mode. This approach is more complicated, but does not override existing keyboard shortcuts provided by the user’s browser or operating system.