class name in react code example

Example 1: react classname

render() {
  return <span className="menu navigation-menu">Menu</span>
}

Example 2: How to add multiple classes to a ReactJS Component

var liClasses = classNames({
      'main-class': true,
      'activeClass': self.state.focused === index
    });

    return (<li className={liClasses}>{data.name}</li>);