CSS can be harmful and must be sanitized w/ e.g. [cssfilter](https://github.com/leizongmin/js-css-filter). It is not a safe default setting to allow the `style` attribute. https://github.com/acrazing/html5parser/blob/cc95ffc4b50d99e64a477eb34934113f2d0ca3c4/src/safeHtml.ts#L95
