LESS syntax allows 'short' writing of the CSS class names like following

    .myCtrl {
        color: green;

        &_child1 {
            color: red;
        }

        &_child2 {
            color: blue;
        }
    }

When compiled, this looks like following in CSS

    .myCtrl {
      color: green;
    }
    .myCtrl_child1 {
      color: red;
    }
    .myCtrl_child2 {
      color: blue;
    }

When I'm writing my HTML, CTRL+Click navigation works for 'myCtrl' and does not work for "myCtrl_child1" and "myCtrl_child2" in following sample:

    <div class="myCtrl">
        <div class="myCtrl_child1"/>
        <div class="myCtrl_child2"/>
    </div>