made escButton ReactComponent

browser/components/ModalEscButton.js

@@ -0,0 +1,18 @@
+import React, {PropTypes} from 'react'
+import CSSModules from 'browser/lib/CSSModules'
+import styles from './ModalEscButton.styl'
+
+const ModalEscButton = ({
+  handleEscButtonClick
+}) => (
+  <button styleName='escButton' onClick={handleEscButtonClick}>
+    <div styleName='esc-mark'>x</div>
+    <div styleName='esc-text'>esc</div>
+  </button>
+)
+
+ModalEscButton.propTypes = {
+  handleEscButtonClick: PropTypes.func.isRequired
+}
+
+export default CSSModules(ModalEscButton, styles)