diff --git a/sphinx_galleria/static/sphinxgalleria/sphinxgalleria.css b/sphinx_galleria/static/sphinxgalleria/sphinxgalleria.css
index 89597a5..dd26664 100644
--- a/sphinx_galleria/static/sphinxgalleria/sphinxgalleria.css
+++ b/sphinx_galleria/static/sphinxgalleria/sphinxgalleria.css
@@ -87,7 +87,7 @@
 }
 
 .sphinxgalleria-core figure input[type=range] {
-    width: 100%;
+    width: 90%;
     height: 1.5rem;
     border: none;
     -webkit-appearance: none;