var styleEl = document.createElement('style');
document.head.appendChild(styleEl);
var styleSheet = styleEl.sheet;
styleSheet.insertRule('button::-moz-focus-inner, [type="button"]::-moz-focus-inner, [type="reset"]::-moz-focus-inner, [type="submit"]::-moz-focus-inner{border-style:  none;padding:  0;}');

VM381:1 Uncaught DOMException: Failed to execute 'insertRule' on 'CSSStyleSheet': Failed to parse the rule 'button::-moz-focus-inner, [type="button"]::-moz-focus-inner, [type="reset"]::-moz-focus-inner, [type="submit"]::-moz-focus-inner{border-style:  none;padding:  0;}'.
    at <anonymous>:1:12