For clarity, let's rename this `Message Queue`, and remove `Message Queue` from the `<h4>` heading above this table. All four numbers here represent actual messages outstanding so that title makes more sense scoped to these columns.

html style comments; can you quote the `colspan` attribute, and instead of using an inline style tag here set `class="text-center"`. That class won't do anything yet, but i'll separately upgrade to the current bootstrap version to pick that up.