SharePoint 2013 – hide the page name

Sometimes I find that the page name at the top of a page in SharePoint gets in the way, especially on wiki pages:

This can be hidden using some custom CSS in a Script Editor web part:

<style>
#DeltaPlaceHolderPageTitleInTitleArea
{
   display: none;
}
</style>

This does, of course, leave an empty space so we can move everything up by including the following CSS:

#DeltaPlaceHolderMain
{
   margin-top:-64px;
}

#notificationArea
{
   margin-top:64px;
}

Now I have a cleaner looking page without the page name at the top: