diff --git a/_posts/docs/2010-12-01-introduction.mdown b/_posts/docs/2010-12-01-introduction.mdown
index ce59861..443a516 100644
--- a/_posts/docs/2010-12-01-introduction.mdown
+++ b/_posts/docs/2010-12-01-introduction.mdown
@@ -104,6 +104,7 @@ Add these styles to your CSS for [filtering](filtering.html), [animation](animat
 .isotope .isotope-item {
   -webkit-transition-duration: 0.8s;
      -moz-transition-duration: 0.8s;
+      -ms-transition-duration: 0.8s;
        -o-transition-duration: 0.8s;
           transition-duration: 0.8s;
 }
@@ -111,6 +112,7 @@ Add these styles to your CSS for [filtering](filtering.html), [animation](animat
 .isotope {
   -webkit-transition-property: height, width;
      -moz-transition-property: height, width;
+      -ms-transition-property: height, width;
        -o-transition-property: height, width;
           transition-property: height, width;
 }
@@ -118,6 +120,7 @@ Add these styles to your CSS for [filtering](filtering.html), [animation](animat
 .isotope .isotope-item {
   -webkit-transition-property: -webkit-transform, opacity;
      -moz-transition-property:    -moz-transform, opacity;
+      -ms-transition-property:    -moz-transform, opacity;
        -o-transition-property:         top, left, opacity;
           transition-property:         transform, opacity;
 }
@@ -129,6 +132,7 @@ Add these styles to your CSS for [filtering](filtering.html), [animation](animat
 .isotope .isotope-item.no-transition {
   -webkit-transition-duration: 0s;
      -moz-transition-duration: 0s;
+      -ms-transition-duration: 0s;
        -o-transition-duration: 0s;
           transition-duration: 0s;
 }
diff --git a/_posts/docs/2010-12-03-options.mdown b/_posts/docs/2010-12-03-options.mdown
index b153259..760234f 100644
--- a/_posts/docs/2010-12-03-options.mdown
+++ b/_posts/docs/2010-12-03-options.mdown
@@ -301,6 +301,7 @@ If you do disable transforms, but still want to use [CSS transitions](animating.
 .isotope .isotope-item {
   -webkit-transition-property: top, left, opacity;
      -moz-transition-property: top, left, opacity;
+      -ms-transition-property: top, left, opacity;
        -o-transition-property: top, left, opacity;
           transition-property: top, left, opacity;
 }
diff --git a/_posts/docs/2010-12-09-animating.mdown b/_posts/docs/2010-12-09-animating.mdown
index 5adec9e..027cf64 100644
--- a/_posts/docs/2010-12-09-animating.mdown
+++ b/_posts/docs/2010-12-09-animating.mdown
@@ -32,6 +32,7 @@ To enable animation with CSS transitions, you'll need the following code in your
   /* change duration value to whatever you like */
   -webkit-transition-duration: 0.8s;
      -moz-transition-duration: 0.8s;
+      -ms-transition-duration: 0.8s;
        -o-transition-duration: 0.8s;
           transition-duration: 0.8s;
 }
@@ -39,6 +40,7 @@ To enable animation with CSS transitions, you'll need the following code in your
 .isotope {
   -webkit-transition-property: height, width;
      -moz-transition-property: height, width;
+      -ms-transition-property: height, width;
        -o-transition-property: height, width;
           transition-property: height, width;
 }
@@ -46,6 +48,7 @@ To enable animation with CSS transitions, you'll need the following code in your
 .isotope .isotope-item {
   -webkit-transition-property: -webkit-transform, opacity;
      -moz-transition-property:    -moz-transform, opacity;
+      -ms-transition-property:     -ms-transform, opacity;
        -o-transition-property:         top, left, opacity;
           transition-property:         transform, opacity;
 }
diff --git a/_posts/docs/2010-12-10-adding-items.mdown b/_posts/docs/2010-12-10-adding-items.mdown
index daecfa5..f74af8f 100644
--- a/_posts/docs/2010-12-10-adding-items.mdown
+++ b/_posts/docs/2010-12-10-adding-items.mdown
@@ -71,6 +71,8 @@ You'll need these styles in your CSS for the reveal animation when adding items.
 .isotope .isotope-item.no-transition {
   -webkit-transition-duration: 0s;
      -moz-transition-duration: 0s;
+      -ms-transition-duration: 0s;
+       -o-transition-duration: 0s;
           transition-duration: 0s;
 }
 
diff --git a/_posts/docs/2011-12-11-help.mdown b/_posts/docs/2011-12-11-help.mdown
index ccc3224..3b6c8e7 100644
--- a/_posts/docs/2011-12-11-help.mdown
+++ b/_posts/docs/2011-12-11-help.mdown
@@ -208,6 +208,7 @@ $('#container').isotope({
 .isotope .isotope-item {
   -webkit-transition-property: right, top, -webkit-transform, opacity;
      -moz-transition-property: right, top, -moz-transform, opacity;
+      -ms-transition-property: right, top, -ms-transform, opacity;
        -o-transition-property: right, top, -o-transform, opacity;
           transition-property: right, top, transform, opacity;
 }
diff --git a/_posts/tests/2011-03-27-flash.html b/_posts/tests/2011-03-27-flash.html
index 27fa010..446ecd0 100644
--- a/_posts/tests/2011-03-27-flash.html
+++ b/_posts/tests/2011-03-27-flash.html
@@ -11,14 +11,6 @@ category: tests
       float: left;
       background: #333;
     }
-    
-    .isotope .isotope-item {
-      -webkit-transition-property: top, left, opacity;
-         -moz-transition-property: top, left, opacity;
-              transition-property: top, left, opacity;
-    }
-    
-  
   </style>
 
   <section id="copy">
diff --git a/_posts/tests/2011-05-13-jquery-animation.html b/_posts/tests/2011-05-13-jquery-animation.html
index d900df7..3df3be8 100644
--- a/_posts/tests/2011-05-13-jquery-animation.html
+++ b/_posts/tests/2011-05-13-jquery-animation.html
@@ -9,6 +9,8 @@ category: tests
   .isotope .isotope-item {
     -webkit-transition: none;
        -moz-transition: none;
+        -ms-transition: none;
+         -o-transition: none;
             transition: none;
   }
 </style>
diff --git a/_posts/tests/2011-08-19-right-to-left.html b/_posts/tests/2011-08-19-right-to-left.html
index aebcd8e..90fe56a 100644
--- a/_posts/tests/2011-08-19-right-to-left.html
+++ b/_posts/tests/2011-08-19-right-to-left.html
@@ -13,6 +13,7 @@ body_class: demos
   .isotope .isotope-item {
     -webkit-transition-property: right, top, -webkit-transform, opacity;
        -moz-transition-property: right, top, -moz-transform, opacity;
+        -ms-transition-property: right, top, -ms-transform, opacity;
          -o-transition-property: right, top, -o-transform, opacity;
             transition-property: right, top, transform, opacity;
   }
diff --git a/css/style.css b/css/style.css
index 6a0a37c..7d5f0d5 100644
--- a/css/style.css
+++ b/css/style.css
@@ -17,6 +17,7 @@
 .isotope .isotope-item {
   -webkit-transition-duration: 0.8s;
      -moz-transition-duration: 0.8s;
+      -ms-transition-duration: 0.8s;
        -o-transition-duration: 0.8s;
           transition-duration: 0.8s;
 }
@@ -24,6 +25,7 @@
 .isotope {
   -webkit-transition-property: height, width;
      -moz-transition-property: height, width;
+      -ms-transition-property: height, width;
        -o-transition-property: height, width;
           transition-property: height, width;
 }
@@ -31,6 +33,7 @@
 .isotope .isotope-item {
   -webkit-transition-property: -webkit-transform, opacity;
      -moz-transition-property:    -moz-transform, opacity;
+      -ms-transition-property:     -ms-transform, opacity;
        -o-transition-property:         top, left, opacity;
           transition-property:         transform, opacity;
 }
@@ -42,6 +45,7 @@
 .isotope .isotope-item.no-transition {
   -webkit-transition-duration: 0s;
      -moz-transition-duration: 0s;
+      -ms-transition-duration: 0s;
        -o-transition-duration: 0s;
           transition-duration: 0s;
 }
@@ -54,6 +58,7 @@
 .isotope.infinite-scrolling {
   -webkit-transition: none;
      -moz-transition: none;
+      -ms-transition: none;
        -o-transition: none;
           transition: none;
 }