Where are the contents of WP_Head

Question

I'm building a theme based on underscores. In the header I'm finding some code for a margin-top but I can't seem to find the source in order to get rid of it. I looked in functions hoping it was defined there, but I actually can't find anything in the theme

@media screen and (max-width: 782px)
html {
  margin-top: 46px !important;
}

I saw that someone suggested adding a new style to the header after <?php wp_head(); ?>. I'll do that if that's what it takes, but let me know if there's a better way.

Answer 1

Looks like the source of my problem is a function called admin_bar_bumpin wp-includes>admin-bar.php. It's for the admin bar and when I log out it goes away so it wasn't effecting the style of the site for logged out users.

I was able to filter it out in my functions.php file. That's actually no better than adding a style to the header, but at least I know where it was coming from.