block12.js

const Template = ({ data }) => {
	const title = data.markdownRemark.frontmatter.title;
	const date = data.markdownRemark.frontmatter.date;
	const html = data.markdownRemark.html;
	return (
		<div>
			<h1>{title}</h1>
			<div>
				<em>{date}</em>
			</div>
			<br />
			<div className="blogpost" dangerouslySetInnerHTML={{ __html: html }} />
		</div>
	);
};