The solution is remarkably simple; just add one line of code to your theme’s functions.php file (see here if you don’t know how).
WordPress allows you to tweak and customize your theme using extra CSS from the admin panel, Appearance –> Themes –> Customize –> Additional CSS
Anything you add here will be applied site-wide. Everywhere, except the login page, unfortunately. Using this line of code fixes this and lets you have a streamline visual experience across your entire site.