Customize WordPress Password Form - Entire Site

customize-entire-site.php

<?php

add_filter( 'ppw_custom_entire_site_login_form', 'custom_login_form' );
function custom_login_form() {
	$is_wrong_password		= isset( $_GET['action'] ) && $_GET['action'] === 'ppw_postpass' && isset( $_POST['input_wp_protect_password'] ) ? 'display: block' : 'display: none';   // Do not remove it. This helps to check whether the user entered password correctly.

	return '
	<div class="pda-form-login">

	     <!--Customize your own logo-->
	     <h1><a></a></h1>

	     <!--parameter action=ppw_postpass to bypass cache-->
	     <!--parameter wrong_password=true to show message wrong password-->
	     <form action="?action=ppw_postpass" method="post">
		<label for="">Password</label>
		<!--Required input tag with name="input_wp_protect_password"-->
		<input class="input_wp_protect_password" type="password" id="input_wp_protect_password"  name="input_wp_protect_password">
                <!-- Customize your error message here -->
		<p id="ppw_entire_site_wrong_password" style="' . $is_wrong_password . '"  class="ppw_entire_site_password_error">' . esc_html__( apply_filters( PPW_Pro_Constants::HOOK_CUSTOM_MESSAGE_WRONG_PASSWORD_ENTIRE_SITE, 'Please enter the correct password!' ), 'password-protect-page' ) . '</p>
	        <input type="submit" class="button button-primary button-login" value="Login">
	     </form>

             <!-- Add your T&C or custom statements here -->
	</div>
    ';
}