Nesting should be no greater than 6

app/assets/stylesheets/framework/typography.scss

@@ -213,8 +213,7 @@
       }
 
       > tbody {
-        > tr {
-          > td {
+        > tr > td {
           border-width: 0;
 
           &:first-child {
@@ -226,12 +225,12 @@
           }
         }
 
-          &:last-child > td {
+        > tr:last-child > td {
           border-bottom-width: 1px;
         }
       }
     }
-    }
+
 
     &.grid-rows {
       > thead > tr > th,