registerBlockType( 'cgb/block-guten-load-post', {
  // ...

  // The "save" property must be specified and must be a valid function.
  save: function( props ) {
    return (
      <div className={ props.className }>
        <div className="post">
          <a href={ props.attributes.link }><h2 dangerouslySetInnerHTML={ { __html: props.attributes.title } }></h2></a>
          <p dangerouslySetInnerHTML={ { __html: props.attributes.content } }></p>
        </div>
      </div>
    );
  },
} );