login_header │ action-hook │ WP 4.6.0

Fires immediately after the opening <body> tag on the login/authorization page (wp-login.php), before the form is output.

See the similar login_footer hook, which fires after the form is output.

Usage

add_action( 'login_header', 'wp_kama_login_header_action' );

/**
 * Function for `login_header` action-hook.
 * 
 * @return void
 */
function wp_kama_login_header_action(){

	// action...
}

Examples

#1 Add a custom block to the login page header

<?php
add_action( 'login_header', 'add_custom_block_to_login_header' );

function add_custom_block_to_login_header() {
	?>
	<div class="custom-block">
		<p>Welcome to our site!</p>
	</div>

	<style>
		.custom-block {
			padding: 15px;
			color: #ffffff;
			text-align: center;
			font-size: 20px;
			background: #488902;
		}
	</style>
	<?php
}