I am currently using https://www.drupal.org/project/views_bootstrap and successfully created a Bootstrap Grid
For each grid item I get the following output as the root most div tag
<div class="col col-lg-4">
But I need to add more class names as follows
<div class="col-lg-4 col-md-4 col-sm-12">
is there a facility to provide additional classes which needs to be added in the root component of each rendered view content?