diff --git a/public/js/vendor/Sortable.js b/public/js/vendor/Sortable.js
index f1d85de..edb4e1c 100644
--- a/public/js/vendor/Sortable.js
+++ b/public/js/vendor/Sortable.js
@@ -132,6 +132,12 @@
                 return elCSS.flexDirection === 'column' || elCSS.flexDirection === 'column-reverse'
                     ? 'vertical' : 'horizontal';
             }
+            if (child1 && firstChildCSS.float !== 'none') {
+                var touchingSideChild2 = firstChildCSS.float === 'left' ? 'left' : 'right';
+
+                return child2 && (secondChildCSS.clear === 'both' || secondChildCSS.clear === touchingSideChild2) ?
+                    'vertical' : 'horizontal';
+            }
             return (child1 &&
                 (
                     firstChildCSS.display === 'block' ||
@@ -456,6 +462,7 @@
     }, true);
 
     var nearestEmptyInsertDetectEvent = function(evt) {
+        evt = evt.touches ? evt.touches[0] : evt;
         if (dragEl) {
             var nearest = _detectNearestEmptySortable(evt.clientX, evt.clientY);
 
@@ -470,8 +477,9 @@
         }
     };
     // We do not want this to be triggered if completed (bubbling canceled), so only define it here
-    document.addEventListener('dragover', nearestEmptyInsertDetectEvent);
-    document.addEventListener('mousemove', nearestEmptyInsertDetectEvent);
+    _on(document, 'dragover', nearestEmptyInsertDetectEvent);
+    _on(document, 'mousemove', nearestEmptyInsertDetectEvent);
+    _on(document, 'touchmove', nearestEmptyInsertDetectEvent);
 
     /**
      * @class  Sortable
@@ -957,7 +965,6 @@
 
         _onTouchMove: function (/**TouchEvent*/evt) {
             if (tapEvt) {
-                if (!evt.cancelable) return;
                 var	options = this.options,
                     fallbackTolerance = options.fallbackTolerance,
                     fallbackOffset = options.fallbackOffset,
@@ -1695,9 +1702,9 @@
                     selector != null &&
                     (
                         selector[0] === '>' && el.parentNode === ctx && _matches(el, selector.substring(1)) ||
-                        _matches(el, selector) ||
-                        (includeCTX && el === ctx)
-                    )
+                        _matches(el, selector)
+                    ) ||
+                    includeCTX && el === ctx
                 ) {
                     return el;
                 }
@@ -1720,7 +1727,7 @@
 
     function _globalDragOver(/**Event*/evt) {
         if (evt.dataTransfer) {
-            evt.dataTransfer.dropEffect = 'none';
+            evt.dataTransfer.dropEffect = 'move';
         }
         evt.cancelable && evt.preventDefault();
     }
@@ -1923,15 +1930,17 @@
     }
 
     /**
-     * Gets the last child in the el, ignoring ghostEl
+     * Gets the last child in the el, ignoring ghostEl or invisible elements (clones)
      * @param  {HTMLElement} el       Parent element
      * @return {HTMLElement}          The last child, ignoring ghostEl
      */
     function _lastChild(el) {
         var last = el.lastElementChild;
 
-        if (last === ghostEl) {
-            last = el.children[el.childElementCount - 2];
+        while (last === ghostEl || last.style.display === 'none') {
+            last = last.previousElementSibling;
+
+            if (!last) break;
         }
 
         return last || null;
@@ -1943,12 +1952,13 @@
             mouseOnOppAxis = axis === 'vertical' ? evt.clientX : evt.clientY,
             targetS2 = axis === 'vertical' ? elRect.bottom : elRect.right,
             targetS1Opp = axis === 'vertical' ? elRect.left : elRect.top,
-            targetS2Opp = axis === 'vertical' ? elRect.right : elRect.bottom;
+            targetS2Opp = axis === 'vertical' ? elRect.right : elRect.bottom,
+            spacer = 10;
 
         return (
-            mouseOnOppAxis > targetS1Opp &&
-            mouseOnOppAxis < targetS2Opp &&
-            mouseOnAxis > targetS2
+            axis === 'vertical' ?
+                (mouseOnOppAxis > targetS2Opp + spacer || mouseOnOppAxis <= targetS2Opp && mouseOnAxis > targetS2 && mouseOnOppAxis >= targetS1Opp) :
+                (mouseOnAxis > targetS2 && mouseOnOppAxis > targetS1Opp || mouseOnAxis <= targetS2 && mouseOnOppAxis > targetS2Opp + spacer)
         );
     }
 
@@ -2334,6 +2344,6 @@
 
 
     // Export
-    Sortable.version = '1.8.1';
+    Sortable.version = '1.8.3';
     return Sortable;
 });
\ No newline at end of file