feat: add fadeInExpand animation

.storybook/animate.stories.js

@@ -9,6 +9,7 @@ const {addon: addonKeyframes} = require('../addon/keyframes');
 const animations = [
     'fadeIn',
     'fadeInDown',
+    'fadeInExpand',
 ];
 
 const nano = create();

addon/animate/fadeInExpand.js

@@ -0,0 +1,25 @@
+'use strict';
+
+exports.addon = function (renderer) {
+    if (process.env.NODE_ENV !== 'production') {
+        require('../__dev__/warnOnMissingDependencies')('animate', renderer, ['keyframes']);
+    }
+
+    renderer.put('', {
+        '@keyframes fadeInExpand': {
+            from: {
+                opacity: 0,
+                transform: 'scale(.95)'
+            },
+
+            to: {
+                opacity: 1,
+                transform: 'scale(1)',
+            }
+        },
+
+        '.fadeInExpand': {
+            animation: 'fadeInExpand .3s',
+        }
+    });
+};

docs/animations.md

@@ -6,6 +6,7 @@ name.
 
 - `animate/fadeIn`
 - `animate/fadeInDown`
+- `animate/fadeInExpand`
 
 Read more about the [Addons Installation](./Addons.md#addon-installation).