<?php
/**
* Plugin Name: Hide title & tagline
* Description: Removes website title & tagline
* Version: 1.0
* Author: Fedor Belousov
* Author URI: mbcproject
**/

function add_custom_css() {
    echo '<style>.site-title,.site-description { display: none !important; }</style>';
}

add_action('wp_head', 'add_custom_css');