improving menu CSS

Signed-off-by: Stephan Richter <s.richter@srsoftware.de>

web/src/main/resources/web/css/default.css

@@ -54,12 +54,90 @@ footer {
 }
 
 nav {
-  position: sticky;
-  z-index: 100;
-  top: 0;
-  padding: 5px;
-  margin: 0 0 10px 0;
-  border-bottom: 1px solid;
+    position: sticky;
+    z-index: 100;
+    top: 0;
+    padding: 5px;
+    margin: 0 0 10px 0;
+    border-bottom: 1px solid;
+}
+
+nav a::before{
+    font-family: awesome;
+    font-size: 20px;
+    font-weight: normal;
+}
+
+nav a.user::before {
+    content: " ";
+}
+
+nav a.company::before {
+    content: " ";
+}
+
+nav a.contact::before{
+    content: " ";
+}
+
+nav a.doc::before {
+    content: " "
+}
+
+nav a.file::before{
+    content: " ";
+}
+
+nav a.mark::before {
+    content: " ";
+}
+
+nav a.note::before {
+    content: " ";
+}
+
+nav a.project::before {
+    content: " ";
+}
+
+nav a.stock::before{
+    content: " "
+}
+
+nav a.tags::before {
+    content: " "
+}
+
+nav a.task::before {
+    content: " ";
+}
+
+nav a.time::before{
+    content: " ";
+}
+
+nav a.wiki::before{
+    content: " ";
+}
+
+nav a.company,
+nav a.contact,
+nav a.doc,
+nav a.file,
+nav a.mark,
+nav a.note,
+nav a.project,
+nav a.stock,
+nav a.tags,
+nav a.task,
+nav a.time,
+nav a.user,
+nav a.wiki{
+    font-size: 0;
+}
+
+nav a:hover{
+    font-size: inherit;
 }
 
 td, tr{