diff --git a/notebook/override.css b/notebook/override.css
index 162df5a..aaac295 100644
--- a/notebook/override.css
+++ b/notebook/override.css
@@ -51,4 +51,8 @@ div.cell.selected.jupyter-soft-selected:before {
   height: calc(100% +  2px);
   content: '';
   background: #2DB998;
-}
\ No newline at end of file
+}
+
+.vega-embed.has-actions > details {
+  flex-shrink: 0;
+}