Remove 0% height from non simple dimmers

src/definitions/modules/dimmer.less

@@ -33,8 +33,8 @@
   top: 0em !important;
   left: 0em !important;
 
-  width: 0%;
-  height: 0%;
+  width: 100%;
+  height: 100%;
 
   text-align: @textAlign;
   vertical-align: @verticalAlign;
@@ -83,8 +83,6 @@
 .dimmed.dimmable > .ui.visible.dimmer,
 .ui.active.dimmer {
   display: block;
-  width: 100%;
-  height: 100%;
   opacity: @visibleOpacity;
 }
 
@@ -150,6 +148,8 @@ body.dimmed.dimmable > :not(.dimmer){
   display: block;
   overflow: hidden;
   opacity: 1;
+  width: 0%;
+  height: 0%;
   z-index: -100;
   background-color: @simpleStartBackground;
 }