I want to exchang Nested Application 2 columns order when in mobile display with "col-md-6 col-md-6". The reason why I want to exchange 2 columns order is because in widescreen, I want to set nested application portlet left text and right picture in 2 columns layout ; but in mobile, I want picture on top of text, but result is picture is under text.  It seems nested application portle can do nothing but only add some custom css code by look and feel configuration.  I try a lot of way on that but still not working (such as "col-md-6 col-md-pull-6",etc) . I hop anybody can help me. thanks a lot!