diff --git a/IPython/html/static/notebook/less/widgets.less b/IPython/html/static/notebook/less/widgets.less
index 2f7acb617..98665e52e 100644
--- a/IPython/html/static/notebook/less/widgets.less
+++ b/IPython/html/static/notebook/less/widgets.less
@@ -257,6 +257,7 @@
 .widget-container {
     /* ContainerWidget */
     .border-box-sizing();
+    .align-start();
 }
 
 .docked-widget-modal {