Merge pull request #75 from glyptodon/GUAC-1043

GUAC-1043: Do not rely on fixed positioning for client viewport.

guacamole/src/main/webapp/app/client/styles/menu.css

@@ -22,7 +22,7 @@
 
 #menu {
     overflow: auto;
-    position: fixed;
+    position: absolute;
     top: 0;
     bottom: 0;
     max-width: 100%;

guacamole/src/main/webapp/app/client/styles/viewport.css

@@ -21,7 +21,7 @@
  */
 
 .viewport {
-    position: fixed;
+    position: absolute;
     bottom: 0;
     left: 0;
     width: 100%;