remove highlighting in table

_sass/minima/_base.scss

@@ -321,20 +321,11 @@ table {
   color: lighten($text-color, 18%);
   border-collapse: collapse;
   border: 1px solid $grey-color-light;
-  tr {
-    &:nth-child(even) {
-      // background-color: lighten($grey-color-light, 6%);
-      background-color: #f0f0f0;
-    }
-  }
   th, td {
     padding: ($spacing-unit / 3) ($spacing-unit / 2);
   }
   th {
-    // background-color: lighten($grey-color-light, 3%);
-    background-color: #f0f0f0;
     border: 1px solid darken($grey-color-light, 4%);
-    border-bottom-color: darken($grey-color-light, 12%);
   }
   td {
     border: 1px solid $grey-color-light;