EDIT: WP Title Hook
Ok, so if you’re using wp_title (which you probably are, it’s default) that function should have two filters in it you could use.
The first one is wp_title_parts, which returns your title broken up into an array.
function wp_title_capitalize( $title_parts ) {
// Only uppercases the words of the first element (should be the page title)
$title_parts[0] = ucwords( $title_parts[0] );
return $title_parts;
}
add_filter( 'wp_title_parts', 'wp_title_capitalize' );
OR if you’re ok with running the uppercase filter on the whole thing, you can run it on wp_title
function wp_full_title_capitalize( $title, $sep, $seplocation ) {
// Uppercases the entire title
$title = ucwords( $title );
return $title;
}
add_filter( 'wp_title', 'wp_full_title_capitalize' );
The second answer is easier to understand, since it runs on the whole thing, but if your titles look like
About Us | COMPANY NAME
Then, you probably want to go with the first option.
As always, with hooks & filters, these go in functions.php of your theme.
Old Answer (CSS ONLY)
If you’re only worried about the display, you can just apply
text-transform: capitalize;
to the CSS of your h1.
http://www.w3schools.com/cssref/playit.asp?filename=playcss_text-transform&preval=capitalize