fix(progressButtons): fix hover effect for shrink

src/sass/theme/_buttons.scss

@@ -59,6 +59,7 @@ $hover: 24;
     @include styleButton($danger, $danger - $hover);
   }
 }
+
 .bootstrap-select {
   .dropdown-toggle:focus {
     outline: none !important;
@@ -71,7 +72,6 @@ $hover: 24;
   }
 }
 
-
 button.btn.btn-primary {
   @include buttonColor($primary, $primary);
   &:active, &:target {
@@ -127,6 +127,7 @@ button.btn.btn-danger {
     transform: none;
   }
 }
+
 @mixin buttonGroupColor($color) {
   border-color: $color - $hover/2;
   &:hover {
@@ -158,8 +159,6 @@ button.btn.btn-danger {
   }
 }
 
-
-
 .btn-toolbar {
   display: inline-block;
 }
@@ -209,10 +208,16 @@ button.progress-button {
     margin-bottom: 0;
     border-radius: 0;
   }
-  &:hover, &.btn.disabled {
+  &:hover {
     transform: none;
   }
 
+  &.progress-button-style-shrink.btn.disabled.progress-button-dir-horizontal:hover {
+    transform: scaleY(.3);
+  }
+  &.progress-button-style-shrink.btn.disabled.progress-button-dir-vertical:hover {
+    transform: scaleX(.1);
+  }
 
   &.btn.btn-primary {
     @include progressButtonColor($primary);