diff --git a/superset/assets/visualizations/markup.css b/superset/assets/visualizations/markup.css
index 9101ff8269df0..02c212bcce31d 100644
--- a/superset/assets/visualizations/markup.css
+++ b/superset/assets/visualizations/markup.css
@@ -1,4 +1,4 @@
-.markup .slice_container {
+.markup.slice_container {
     padding: 10px;
     overflow: auto;
 }