remove and change style wordpress admin bar

Default.html

<style type="text/css" 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>

remove - change style wordpress admin bar.php

<?php
//Edit this code to functions.php
//remove admin bar show_admin_bar(false);
//Remove style admin bar
add_action('get_header', 'remove_admin_login_header');
function remove_admin_login_header() {
	remove_action('wp_head', '_admin_bar_bump_cb');
}
//Add my style admin bar
function my_admin_css() {
	if ( is_user_logged_in() && is_admin_bar_showing()) {?>
    <style type="text/css">
    	/*Code css in here*/
    </style>
<?php }
}
add_action('wp_head', 'my_admin_css');
?>