Webflow.js

(function ($) {

    var dragging = null;

    $(".style-editor").on("mousedown.wf", ".tick", function (e) {
        var $ghost = $("<div class='drag-ghost'>").appendTo('body').css(
            'cursor', 'ns-resize'
        );
        var $input = $(this).closest('.input-control').find('input');
        dragging = {
            startY: e.clientY,
            oldVal: $input.val(),
            $ele: $(this),
            $input: $input,
            $ghost: $ghost
        };
        return false;
    });

    $(window).on("mouseup.wf blur.wf focusout.wf", function (e) {
        if (dragging) {
            dragging.$ele.closest('.input-control').find('input').change();
            dragging.$ghost.remove();
            dragging = null;
            return false;
        }
    });

    $(window).on("mousemove.wf", function (e) {
        if (dragging) {
            var delta = dragging.startY - e.clientY;
            var newVal = parseInt(dragging.oldVal, 10) + delta * 2;
            if (isNaN( newVal )) return;
            dragging.$input.val(newVal).change();
        }
    });

})(jQuery);