WordPress at a glance
function is not described

_admin_bar_bump_cb() WP 3.1.0

Default admin bar callback.

This is an internal function for using it by WP core itself. It's not recommended to use this function in your code.

No Hooks.

Return

null. Nothing.

Usage

_admin_bar_bump_cb();

Changelog

Since 3.1.0 Introduced.

Code of _admin_bar_bump_cb() WP 5.7.2

<?php
function _admin_bar_bump_cb() {
	$type_attr = current_theme_supports( 'html5', 'style' ) ? '' : ' type="text/css"';
	?>
<style<?php echo $type_attr; ?> media="screen">
	html { margin-top: 32px !important; }
	* html body { margin-top: 32px !important; }
	@media screen and ( max-width: 782px ) {
		html { margin-top: 46px !important; }
		* html body { margin-top: 46px !important; }
	}
</style>
	<?php
}