<script type="text/javascript" src="https://code.jquery.com/jquery-1.12.4.min.js" ></script>
<script type="text/javascript" src="https://code.jquery.com/ui/1.12.1/jquery-ui.js" ></script>
$(".sort1").sortable({
items: $('.sort1')
,start: function(event, ui) {
console.log('start point : ' + ui.item.position().top);
}
,update: function(event, ui) {
console.log('end point : ' + ui.item.position().top);
}
});