fixup! TB 30237: Add v3 onion services client authentication prompt

 * TODO: Replace with moz-button when it handles this for us. See

 * tor-browser#43275. */

button.spoof-button-disabled {

  /* Borrow the :disabled rule from common-shared.css */

  opacity: 0.4;

  opacity: var(--button-opacity-disabled);

  /* Also ensure it does not get hover or active styling. */

  pointer-events: none;

}