diff --git a/guacamole/src/main/webapp/app/osk/styles/osk.css b/guacamole/src/main/webapp/app/osk/styles/osk.css
index f291a48ef..2165c0a9e 100644
--- a/guacamole/src/main/webapp/app/osk/styles/osk.css
+++ b/guacamole/src/main/webapp/app/osk/styles/osk.css
@@ -97,6 +97,10 @@
     border-style: inset;
 }
 
+.guac-keyboard .guac-keyboard-group {
+    line-height: 0;
+}
+
 .guac-keyboard .guac-keyboard-group.guac-keyboard-main,
 .guac-keyboard .guac-keyboard-group.guac-keyboard-movement {
     display: inline-block;