diff --git a/src/plugins/vis_default_editor/public/_default.scss b/src/plugins/vis_default_editor/public/_default.scss
index b095ed922a24be..c412b9d915e553 100644
--- a/src/plugins/vis_default_editor/public/_default.scss
+++ b/src/plugins/vis_default_editor/public/_default.scss
@@ -1,4 +1,5 @@
 .visEditor--default {
+  // height: 1px is in place to make editor children take their height in the parent
   height: 1px;
   flex: 1 1 auto;
   display: flex;