No estándar
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.
La pseudo-clase :-moz-lwtheme es verdadera y seleccionada en los documento chrome cuando el atributo lightweightthemes del elemento raíz es true (verdadero) y se ha seleccionado un tema
:active:any-link:checked:-moz-only-whitespace:default:defined:dir():disabled:empty:enabled:first:first-child:first-of-type:fullscreen:focus:focus-within:has:host() [Traducir]:host-context() [Traducir]:hover:indeterminate:in-range:invalid:lang:last-child:last-of-type:left:link:matches() (:any()) [Traducir]:not():nth-child:nth-last-child:nth-last-of-type():nth-of-type:only-child:only-of-type:optional:out-of-range:placeholder-shown:read-only:read-write:required:right:root:scope [Traducir]:target:valid:visited::-moz-progress-bar::-moz-range-progress::-moz-range-thumb::-moz-range-track::-ms-browse::-ms-check::-ms-clear::-ms-expand::-ms-fill::-ms-fill-lower::-ms-fill-upper::-ms-reveal::-ms-thumb::-ms-ticks-after [Traducir]::-ms-ticks-before [Traducir]::-ms-tooltip [Traducir]::-ms-track::-ms-value::-webkit-progress-bar::-webkit-progress-value::-webkit-slider-runnable-track::-webkit-slider-thumb::after (:after)::backdrop::before (:before)::cue (:cue) [Traducir]::first-letter (:first-letter) [Traducir]::first-line (:first-line) [Traducir]::grammar-error [Traducir]::placeholder [Traducir]::selection::slotted() [Traducir]::spelling-error