Improve navigation sub-menu and tabs effects (#2971)

* Improve nav border and colors on active and non-active

* Remove margin-top effect on active nav

* Use opacity / bold instead of color change on nav

* Remove dropdown items label in sub-menu and add a class active

* Position sub-menu to fixed

* Autoclose dropdown sub-menu only on outside click

* Remove open dropdown on hover in sub-menu

* Show reusable h1 for dropdown item in sub-menu

* Put reusable sub-menu h1 styles to mixins

* Add icons to sub-menu dropdown-item h1

* Make all the sub-menu accessible with focus

Co-authored-by: kimsible <kimsible@users.noreply.github.com>

1 files changed, 19 insertions, 20 deletions

diff --git a/client/src/sass/bootstrap.scss b/client/src/sass/bootstrap.scss
index dd5824b7a..897182e53 100644
--- a/client/src/sass/bootstrap.scss
+++ b/client/src/sass/bootstrap.scss
@@ -161,9 +161,14 @@ $icon-font-path: '~@neos21/bootstrap3-glyphicons/assets/fonts/';
 
 .nav.nav-pills {
   font-size: 16px !important;
+  font-weight: $font-semibold !important;
 
-  .nav-link.active {
-    font-weight: $font-semibold !important;
+  .nav-link {
+    opacity: 0.6 !important;
+
+    &.active, &:hover, &:active, &:focus {
+      opacity: 1 !important;
+    }
   }
 
   a {
@@ -173,29 +178,23 @@ $icon-font-path: '~@neos21/bootstrap3-glyphicons/assets/fonts/';
   }
 }
 
-.nav-tabs {
-
-  .nav-link {
-    @include disable-default-a-behaviour;
+.nav-tabs .nav-link {
+  @include disable-default-a-behaviour;
 
-    color: pvar(--mainForegroundColor) !important;
-  }
-}
+  color: pvar(--mainForegroundColor);
+  font-weight: $font-semibold;
+  border: none;
+  border-bottom: 2px solid transparent;
+  opacity: 0.6;
 
-.nav-tabs .nav-link {
-  &:not(.active) {
-    border-bottom: 3px solid transparent;
-  }
   &.active {
-    font-weight: $font-semibold;
+    color: pvar(--mainForegroundColor);
     background-color: pvar(--mainBackgroundColor) !important;
-    border: none;
-    border-bottom: 2px solid pvar(--mainColor);
+    border-bottom-color: pvar(--mainColor);
   }
-  &:hover {
-    border-top-color: transparent;
-    border-left-color: transparent;
-    border-right-color: transparent;
+
+  &.active, &:hover, &:active, &:focus {
+    opacity: 1;
   }
 }