What even is this?

By adding the inert attribute to any element you make the elements inside it unfocusable (by mouse, pointer events or keyboard tabbing. You shouldn't be able to click this or set focus to it because it is inside a container that is inert.

This checkbox is inside the inert container too This field is inside the inert container too

Clicking the checkbox above will toggle the element's inert property via

element.inert = evt.target.checked == true;

You shouldn't be able to click this or set focus to it..

This inner section is marked inert

Toggling the outer inert should not make this link become clickable.

Clicking the checkbox above will toggle the element's inert property via

element.inert = evt.target.checked == true;

You shouldn't be able to click this or set focus to it..

This inner section is not marked inert

Toggling the inner inert should not make this link become clickable.

Clicking the checkbox above will toggle the element's inert property via

element.inert = evt.target.checked == true;

You shouldn't be able to click this or set focus to it..

This inner section is not marked inert

Toggling the inner inert should not make this link become clickable or tabbable.

Toggling the inner inert should not make this fake link become tabbable or clickable either.