PropTypes and refactoring

src/components/UI/Button/Button.js

@@ -1,5 +1,6 @@
 import React from 'react';
 import './Button.css';
+import PropTypes from 'prop-types';
 
 const Button = (props) => {
   return (
@@ -14,4 +15,12 @@ const Button = (props) => {
   );
 };
 
+Button.propTypes = {
+  children: PropTypes.oneOfType([PropTypes.object, PropTypes.array, PropTypes.string]),
+  autoFocus: PropTypes.bool,
+  buttonStyles: PropTypes.object,
+  clicked: PropTypes.func,
+  disabled: PropTypes.bool,
+};
+
 export default Button;