@media screen and (max-width: 520px) {

.mce-window                         {width:auto !important; top:0px !important; left:0px !important; right:0px !important; bottom:0px !important; background:none !important;}
.mce-window-head                    {background:#FFFFFF !important;}
.mce-window-body                    {background:#FFFFFF !important;}
.mce-foot > .mce-container-body     {padding:10px !important; width:80% !important;}
.mce-panel                          {max-width:100% !important;}
.mce-container                      {max-width:100% !important; height:auto !important; overflow:auto;}
.mce-container-body                 {max-width:100% !important; height:auto !important; overflow:auto;}
.mce-form                           {padding:10px !important;}
.mce-tabs                           {max-width:100% !important;}
.mce-formitem                       {margin:10px 0 !important;}
.mce-abs-layout-item                {position:static !important; width:auto !important;}
.mce-abs-layout-item.mce-label      {display:block !important;}
.mce-abs-layout-item.mce-textbox    {-webkit-box-sizing:border-box !important; -moz-box-sizing:border-box !important; box-sizing:border-box !important; display:block !important; width:100% !important;}
.mce-abs-layout-item.mce-combobox   {display:flex !important;}
.mce-abs-layout-item.mce-combobox > .mce-textbox {-ms-flex:1 1 auto; -webkit-flex:1 1 auto; flex:1 1 auto; height:29px !important; width:80% !important;}
.mce-container-body.mce-window-body.mce-abs-layout iframe {height:500px !important;} /*this only use with responsive file manager 9*/
}