diff -u b/core/themes/seven/css/components/tables.css b/core/themes/seven/css/components/tables.css
--- b/core/themes/seven/css/components/tables.css
+++ b/core/themes/seven/css/components/tables.css
@@ -4,10 +4,10 @@
  */
 
 table {
+  table-layout: fixed;
   width: 100%;
   margin: 0 0 10px;
   border-collapse: collapse;
-  table-layout: fixed;
 }
 caption {
   text-align: left; /* LTR */