Looks like the same problem
I think I've got the same problem. My Sortable List have many items,
with differenze height but constant width. So I can define in my
placeholder class the width but how can I define the height. The
height should be exactly the height of the sortable item.
Have you any idea? My sortable code block looks like
$("#left").sortable({
connectWith: ["#middle","#right"],
forcePlaceholderSize:true,
placeholder:'placeholder',
handle:'.element_head',
items:'.element',
scroll:true,
forceHelperSize:true,
helper:'clone',
stop: function(event, ui){
myserializefunction();
}
});