Improve button group style

Change-Id: I3272a2f6346e256ac652ec3756bbebaeb8da8b1f
diff --git a/dev/scss/main/resultinfo.scss b/dev/scss/main/resultinfo.scss
index 5556239..0255161 100644
--- a/dev/scss/main/resultinfo.scss
+++ b/dev/scss/main/resultinfo.scss
@@ -64,10 +64,10 @@
   display:        inline-block;
   width:          auto;
   vertical-align: bottom;
-  line-height:    1.3em;
+  line-height:    1.5em;
 
   > span {
-    line-height:  1.3em;
+    line-height:  1.5em;
     border-width: $result-border-size 0;
 
     &:first-child {