How to end this loop properly?

Let’s throw everything, but loop out:

if ($my_query->have_posts()) {

    // open container around all posts

    while ($my_query->have_posts()) :
        $my_query->the_post();

        // output for every post

    endwhile;

    // close containers around all posts
}

As you see:

• output of posts goes inside while loop as usual;

• opening larger containers is between checking if we have posts and while;

• closing larger containers should be after endwhile, but still inside if block.