{"type":"rich","version":"1.0","title":"Learn how to use the classList API to manipulate the DOM.","author_name":"damonbauer","author_url":"https://plnkr.co/users/damonbauer","provider_name":"Plunker","provider_url":"https://plnkr.co","html":"<iframe id=\"plnkr_embed_6VVR9n\" class=\"plnkr_embed_iframe\" style=\"width: 100%; overflow: hidden;\" src=\"https://embed.plnkr.co/plunk/6VVR9n?autoCloseSidebar&deferRun&show=preview\" width=\"600\" height=\"400\" frameborder=\"0\" scrolling=\"no\"></iframe>","width":600,"height":400,"thumbnail_url":"https://shot.plnkr.co/6VVR9n.png?d=2016-09-16T19%3A31%3A39.543Z","thumbnail_width":400,"thumbnail_height":300}