Regain default button styling by CSS overrides. Possible?

dabblet.css

/**
 * Regain default button styling by CSS overrides. Possible?
 */

button {
	background: red; /* we can't remove this */
	background: initial; /* failed */
	background: none; /* failed */
	/* anything else? */
}

dabblet.html

<button>Can I haz default style?</button>

settings.json

{"view":"split","prefixfree":"1","page":"css"}