Chrome bug all: unset !important;

dabblet.css

/**
 * Chrome bug all: unset !important;
 */
span {
	font-size: 500%;
	color: green;
	border: 2px solid red;
}


body * {
	all: unset !important;
}

dabblet.html

<span>This text should be 16px and black</span>

dabblet.js

// alert('Hello world!');

settings.json

{"view":"split-vertical","fontsize":"100","seethrough":"","prefixfree":"","page":"css"}