index.php

<?php
/**
 * The main template file
 *
 * This is the most generic template file in a WordPress theme
 * and one of the two required files for a theme (the other being style.css).
 * It is used to display a page when nothing more specific matches a query.
 * E.g., it puts together the home page when no home.php file exists.
 *
 * @link http://codex.wordpress.org/Template_Hierarchy
 *
 * @package WordPress
 * @subpackage Twenty_Sixteen
 * @since Twenty Sixteen 1.0
 */

get_header(); ?>

  <div id="primary" class="content-area">
    <main id="main" class="site-main" role="main">

      <h1>We partyin'!</h1>
      <hr>
      <h3>This is a simple child theme of the WordPress default TwentySixteen theme. So good.</h3>
    </main><!-- .site-main -->
  </div><!-- .content-area -->

<?php get_footer(); ?>