improving main menu for mobile devices

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

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

@@ -297,4 +297,11 @@ tr:hover .taglist .tag button {
 
 .easylist .filter{
 	background: black;
+}
+
+@media screen and (max-width: 900px) {
+	#app nav a{
+		background: black;
+		color: orange;
+	}
 }

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

@@ -504,6 +504,41 @@ a.wikilink{
     float: right;
 }
 
+@media screen and (min-width: 900px) {
+	#app nav button.symbol{
+		display: none;
+	}
+}
+
+@media screen and (max-width: 900px) {
+	#app nav{
+        grid-template-columns: auto auto auto;
+		display: grid;
+		margin: 0 5px;
+
+    }
+    #app nav form{
+    	grid-column-end: span 2;
+    }
+    #app nav .logout{
+    	grid-column-end: 4;
+    }
+
+	#app nav.collapsed a{
+		display: none;
+	}
+
+	#app nav a {
+	  font-size: 19px !important;
+	  display: grid;
+	  text-align: center;
+	  border: 1px solid;
+	  margin: 5px;
+	  border-radius: 7px;
+	}
+}
+
+
 @media screen and (max-width: 600px) {
     .grid2{
         display: grid;
@@ -533,6 +568,15 @@ a.wikilink{
 	.easylist input{
 		font-size: 20px;
 	}
+	#app nav{
+		grid-template-columns: auto auto;
+	}
+	#app nav form{
+		grid-column-end: span 1;
+	}
+    #app nav .logout{
+    	grid-column-end: 3;
+    }
 }
 
 fieldset.vcard{