create bootstrap columns inside editor group block

Inside your .row container choose a “Columns Block” instead of a paragraph block. Each column can be assigned the desired bootstrap CSS class. It will look like this: <div class=”wp-block-group container”> <div class=”wp-block-group__inner-container”> <div class=”wp-block-group row”> <div class=”wp-block-group__inner-container”> <div class=”wp-block-columns”> <div class=”wp-block-column col-sm-12 col-md-6 col-lg-6″> <p>Text Here</p> </div> <div class=”wp-block-column col-sm-12 col-md-6 col-lg-6″> <p>More Text</p> … Read more