className={`wrapper searchDiv ${this.state.something}`}
render () {
var btnClass = classNames({
'btn': true,
'btn-pressed': this.state.isPressed,
'btn-over': !this.state.isPressed && this.state.isHovered
});
return <button className={btnClass}>I'm a button!</button>;
}
className={'wrapper searchDiv ' + this.state.something}