height: var(--zen-toolbar-height); @media (-moz-bool-pref: 'zen.view.hide-window-controls') { & { transition: height 0.15s ease, opacity 0.1s ease-out; transition-delay: 0.2s; & > * { transition: opacity 0.2s ease-out; transition-delay: 0.2s; } } &:not([zen-has-hover='true']):not([has-popup-menu]):not(:focus-within) { transition-delay: 0.2s; height: var(--zen-element-separation); overflow: hidden; opacity: 0; & > * { opacity: 0; pointer-events: none; } } @media (-moz-bool-pref: 'zen.view.experimental-no-window-controls') { &:has(#PersonalToolbar[collapsed='true']) { max-height: 0 !important; overflow: hidden; opacity: 0 !important; pointer-events: none !important; } } } :root[inDOMFullscreen='true'] & { max-height: 0 !important; min-height: unset !important; opacity: 0 !important; pointer-events: none !important; }