import './demo1.css'; import Animate from '..'; import React from 'react'; import ReactDOM from 'react-dom'; interface IState { visible: boolean; } class Demo extends React.Component<{}, IState> { constructor(props) { super(props); this.state = { visible: true }; this.handleToggle = this.handleToggle.bind(this); } handleToggle() { this.setState({ visible: !this.state.visible, }); } render() { return (