The columns are always added inside the rows. You may find more information about Row in this post and more details about the Row Responsive options can be found in this post. of the theme documentation. Also, more examples can be found following Rows&Columns page.
Create a page, select the needed page template (we’d recommend you to use For Page Builder page template to build a page with VC elements) and navigate to the Visual Composer section.
Spacers are one of the simplest but important modules for creating the pages. It allows you to add the spaces between the images and thus control the displaying of them.
Understanding how important it is for our customers to create responsive and nice looking pages on any device, we’ve developed the row responsive functionality.Row responsive options are the perfect solution