diff --git a/docs/assets/css/bootstrap.css b/docs/assets/css/bootstrap.css
index 2155b91cd8..12cdf6187e 100644
--- a/docs/assets/css/bootstrap.css
+++ b/docs/assets/css/bootstrap.css
@@ -2017,8 +2017,10 @@ table {
   background-color: #f5f5f5;
 }
 
-table [class*=span],
-.row-fluid table [class*=span] {
+table td[class*="span"],
+table th[class*="span"],
+.row-fluid table td[class*="span"],
+.row-fluid table th[class*="span"] {
   display: table-cell;
   float: none;
   margin-left: 0;
diff --git a/less/tables.less b/less/tables.less
index ca2c287c7d..3f2c7f783b 100644
--- a/less/tables.less
+++ b/less/tables.less
@@ -172,8 +172,10 @@ table {
 // -----------------
 
 // Reset default grid behavior
-table [class*=span],
-.row-fluid table [class*=span] {
+table td[class*="span"],
+table th[class*="span"],
+.row-fluid table td[class*="span"],
+.row-fluid table th[class*="span"] {
   display: table-cell;
   float: none; // undo default grid column styles
   margin-left: 0; // undo default grid column styles