页面的head部分，需引入页面的CSS样式文件、react库和react-dom，代码如下：

<link type="text/css" rel="stylesheet" href="css/style.css">
<script type="text/javascript" src="js/react.min.js"></script>
<script type="text/javascript" src="js/react-dom.min.js"></script>

页面的body部分，仅需一个指定id的div容器即可，代码如下：

<div id="root"></div>

页面的底部，用了React的语法结构，代码如下：

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

var AnimatedCard = function (_React$Component) {
	_inherits(AnimatedCard, _React$Component);

	function AnimatedCard() {
		_classCallCheck(this, AnimatedCard);

		return _possibleConstructorReturn(this, _React$Component.apply(this, arguments));
	}

	AnimatedCard.prototype.render = function render() {
		var _props = this.props;
		var position = _props.position;
		var digit = _props.digit;
		var animation = _props.animation;

		return React.createElement(
			'div',
			{ className: 'flipCard ' + position + ' ' + animation },
			React.createElement(
				'span',
				null,
				digit
			)
		);
	};

	return AnimatedCard;
}(React.Component);