diff --git a/README.md b/README.md
index f854824..1ba29fc 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,6 @@ npm install flexboxes
 
 ### `display`
 - `.flex`
-- `.flex-item`
 - `.inline-flex`
 
 ### `flex-direction`
@@ -150,7 +149,6 @@ npm install flexboxes
 #### portrait
 
 - `.portrait-flex`
-- `.portrait-flex-item`
 - `.portrait-inline-flex`
 - `.portrait-flex-wrap`
 - `.portrait-flex-nowrap`
@@ -159,7 +157,6 @@ npm install flexboxes
 #### landscape
 
 - `.landscape-flex`
-- `.landscape-flex-item`
 - `.landscape-inline-flex`
 - `.landscape-flex-wrap`
 - `.landscape-flex-nowrap`
diff --git a/main.css b/main.css
index eb42b67..82c23e6 100644
--- a/main.css
+++ b/main.css
@@ -1,5 +1,4 @@
 .flex { display: -webkit-box; display: -ms-flexbox; display: flex }
-.flex-item { display: flex-item }
 .inline-flex { display: -webkit-inline-box; display: -ms-inline-flexbox; display: inline-flex }
 
 .flex-row { -webkit-box-orient: horizontal; -webkit-box-direction: normal; -ms-flex-direction: row; flex-direction: row }
@@ -118,7 +117,6 @@
 
 @media (orientation: portrait) {
   .portrait-flex { display: -webkit-box; display: -ms-flexbox; display: flex }
-  .portrait-flex-item { display: flex-item }
   .portrait-inline-flex { display: -webkit-inline-box; display: -ms-inline-flexbox; display: inline-flex }
   .portrait-flex-wrap { -ms-flex-wrap: wrap; flex-wrap: wrap }
   .portrait-flex-nowrap { -ms-flex-wrap: nowrap; flex-wrap: nowrap }
@@ -127,7 +125,6 @@
 
 @media (orientation: landscape) {
   .landscape-flex { display: -webkit-box; display: -ms-flexbox; display: flex }
-  .landscape-flex-item { display: flex-item }
   .landscape-inline-flex { display: -webkit-inline-box; display: -ms-inline-flexbox; display: inline-flex }
   .landscape-flex-wrap { -ms-flex-wrap: wrap; flex-wrap: wrap }
   .landscape-flex-nowrap { -ms-flex-wrap: nowrap; flex-wrap: nowrap }
diff --git a/module.css b/module.css
index 098b949..9d2cce9 100644
--- a/module.css
+++ b/module.css
@@ -1,5 +1,4 @@
 .flex { display: flex }
-.flex-item { display: flex-item }
 .inline-flex { display: inline-flex }
 
 .flex-row { flex-direction: row }
@@ -118,7 +117,6 @@
 
 @media (orientation: portrait) {
   .portrait-flex { display: flex }
-  .portrait-flex-item { display: flex-item }
   .portrait-inline-flex { display: inline-flex }
   .portrait-flex-wrap { flex-wrap: wrap }
   .portrait-flex-nowrap { flex-wrap: nowrap }
@@ -127,7 +125,6 @@
 
 @media (orientation: landscape) {
   .landscape-flex { display: flex }
-  .landscape-flex-item { display: flex-item }
   .landscape-inline-flex { display: inline-flex }
   .landscape-flex-wrap { flex-wrap: wrap }
   .landscape-flex-nowrap { flex-wrap: nowrap }