Disable WordPress Spacing in Posts or Pages
Wordpress automatically adds extra spacing after you press enter. If creating the HTML for blog posts. That did, require turning off autop — the filter that normally formats post content. To turn off the autop filter, simply add this PHP snippet to your theme’s functions.php in your active theme:
remove_filter('the_content', 'wpautop');
This tiny snippet of code remove_filter call could save you a hurs of trouble with formatting that seems out of your hands.
If your WordPress blog uses multiple themes and you’d prefer to add this functionality as a plugin, you can place the following within a PHP file to be placed in the /wp-content/plugins directory: