src/language-html/constants.evaluate.js/getCssStyleTags
const getCssStyleTags = (property) =>
  Object.fromEntries(
    htmlStyles
      .filter((htmlStyle) => htmlStyle.style[property])
      .flatMap((htmlStyle) =>
        htmlStyle.selectorText
          .split(",")
          .map((selector) => selector.trim())
          .filter((selector) => /^[\dA-Za-z]+$/.test(selector))
          .map((tagName) => [tagName, htmlStyle.style[property]])
      )
  );