Using <a name> for Category Links

I am creating a site using opencart for a client (I can't show the site, unfortunately). At their request, when a user clicks a link on the Categories module, the page should focus at the Category header on the page, rather than at the top of the web page. I have attempted to do this using the standard <a name="x"> approach and adding a #x to the end of the url, but it doesn't seem to be working. Any ideas?

Thanks

no need to use 'a name' if the element has an id

eg <div id="header">

url would be somepage#header