diff --git a/src/js/controller/popover.js b/src/js/controller/popover.js
index 28d635a..f756a69 100644
--- a/src/js/controller/popover.js
+++ b/src/js/controller/popover.js
@@ -33,6 +33,7 @@ define(function(require) {
                     var width = elm[0].offsetWidth;
                     var height = elm[0].offsetHeight;
 
+                    popover[0].style.transition = 'opacity 0.4s linear';
                     popover[0].style.top = (top + height / 2 - popover[0].offsetHeight / 2) + 'px';
                     popover[0].style.left = (left + width) + 'px';
                     popover[0].style.opacity = '1';
@@ -40,7 +41,10 @@ define(function(require) {
             });
 
             elm.on('mouseout', function() {
+                popover[0].style.transition = 'opacity 0.4s linear, top 0.4s step-end, left 0.4s step-end';
                 popover[0].style.opacity = '0';
+                popover[0].style.top = '-9999px';
+                popover[0].style.left = '-9999px';
             });
         };
     });
diff --git a/src/sass/components/_popover.scss b/src/sass/components/_popover.scss
index eb53e51..30ca392 100644
--- a/src/sass/components/_popover.scss
+++ b/src/sass/components/_popover.scss
@@ -19,7 +19,6 @@
     box-shadow: 0 5px 10px rgba(0, 0, 0, 0.2);
     white-space: normal;
     opacity: 0;
-    transition: opacity 0.4s;
 
     &.top {
         margin-top: -10px;