What you point me that `video` and `video categories` is consider as module content inside the tile instead of that module title, you can check further my attached screenshot below.

PS: Also, I suppose line like in <hr class="es-hr"> should be added before header. I added screen like it would be great.

Actually that border bottom line will not generate for each of the sidebar module, because what you point me that `video` and `video categories` section is a module and inside this module content got included those border bottom line styling within the module.

If you would like to show this border bottom line for each of the module, you can try apply this custom css :

body #es .es-modules-es-sidebar > div {

	border-top: 1px solid #ddd;

	padding-top: 20px;

}