jquery支持拖拽并调整大小的元素块插件

使用方法

var opts = {
        containment: "parent",
        smartGuides: true,  
        appendGuideTo: '.drag:not(".selected")',  
        snapTolerance: 10,
        beforeStart: function () {
            var $this = $(this);
            if (!$this.hasClass('selected')) {
                $this.siblings('.selected').removeClass('selected');
                $this.addClass('selected');
            }
        }
};

$('.container .drag')
.draggable(opts)
.resizable($.extend({ handles: 'all' }, opts ));