Making upload button into a smaller icon button

app/assets/javascripts/components/features/compose/components/drawer.jsx

@@ -0,0 +1,26 @@
+import PureRenderMixin from 'react-addons-pure-render-mixin';
+
+const style = {
+  boxSizing: 'border-box',
+  background: '#454b5e',
+  padding: '0',
+  display: 'flex',
+  flexDirection: 'column',
+  overflowY: 'auto'
+};
+
+const Drawer = React.createClass({
+
+  mixins: [PureRenderMixin],
+
+  render () {
+    return (
+      <div className='drawer' style={style}>
+        {this.props.children}
+      </div>
+    );
+  }
+
+});
+
+export default Drawer;