diff --git a/README.md b/README.md
index 2cff48d..3ec5e1e 100644
--- a/README.md
+++ b/README.md
@@ -30,6 +30,7 @@ require('eases/bounce-out')
 require('eases/circ-in-out')
 require('eases/circ-in')
 require('eases/circ-out')
+require('eases/css-ease-approx')
 require('eases/cubic-in-out')
 require('eases/cubic-in')
 require('eases/cubic-out')
diff --git a/css-ease-approx.js b/css-ease-approx.js
new file mode 100644
index 0000000..a312e68
--- /dev/null
+++ b/css-ease-approx.js
@@ -0,0 +1,7 @@
+function cssEaseApprox(t) {
+  if (t <= 0) return 0;
+  if (t >= 1)  return 1;
+  return 1.0042954579734844 * Math.exp(-6.4041738958415664 * Math.exp(-7.2908241330981340 * t));
+}
+
+module.exports = cssEaseApprox;
diff --git a/package.json b/package.json
index 823ec37..07525c7 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "eases",
-  "version": "1.0.8",
+  "version": "1.1.0",
   "description": "grab bag of easing equations",
   "main": "index.js",
   "license": "MIT",