I want the look of popup in OpenLayers.Popup.FramedCloud to my openlayers3 popup , that makes my highlited feature more clearly and the information is shown in the popup as table form data.
You can create such a popup using an
ol.Overlay. Look at the following popup example in ol3 as a start. It already looks a lot like the original framed cloud popup.
You can control its styling / size using plain CSS.