n Draggable</h2>
<p>The draggable object can only be moved within its parent container.</p>
<div style="margin:20px 0;"></div>
<div class="easyui-panel" style="position:relative;overflow:hidden;width:500px;height:300px">
    <div class="easyui-draggable" data-options="onDrag:onDrag"
         style="width:100px;height:100px;background:#fafafa;border:1px solid #ccc;">
    </div>
</div>
<script>
    function onDrag(e) {
        var d = e.data;
        if (d.left < 0) {
            d.left = 0
        }
        