Hey. Before making any change’s to a theme’s template files, you must first create a child theme. Information about child themes and instructions on how to create one can be found here: codex.ww.wp.xz.cn/Child_Themes.
Once you’ve created your child theme, upload a content-page.php file to it. Copy and paste the code from your parent theme’s content-page.php into your child theme’s.
Finally, in your child theme’s content-page.php file, find and delete the following code in the file:
<header class="entry-header">
<h1 class="entry-title"><?php the_title(); ?></h1>
</header><!-- .entry-header -->
Let me know if this gives you the result you were looking for.
article.page .entry-header {display: none;}
Inserted into the custom CSS panel.
Thanks to Scott
