style: visual improvements

src/styles.scss

@@ -11,11 +11,12 @@ $material-icons-font-path: '~material-icons/iconfont/';
 
 body,
 html {
-    background: #fff;
     user-select: none;
     margin: 0;
     padding: 0;
     height: 100%;
+    width: 100%;
+    overflow: auto;
     font-family: Arial, Helvetica, sans-serif;
 }
 
@@ -81,8 +82,6 @@ textarea,
 }
 
 .cet-container {
-    height: calc(100vh);
-
     .video-js {
         height: calc(100vh - 82px) !important;
     }
@@ -95,4 +94,9 @@ textarea,
     .recent-playlists {
         height: calc(100vh - 152px - 28px) !important;
     }
+
+    #groups-list,
+    #favorites-list {
+        height: calc(100vh - 148px) !important;
+    }
 }