combine classes and styles react code example
Example 1: add 2 class names react
<input className={`form-control round-lg ${this.state.valid ? '' : 'error'}`} />
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>);