{"type":"rich","version":"1.0","title":"Polymer 1.0 element  layout overlap","provider_name":"Plunker","provider_url":"https://plnkr.co","html":"<iframe id=\"plnkr_embed_fUoBkwTp4U0XnMue5K6a\" class=\"plnkr_embed_iframe\" style=\"width: 100%; overflow: hidden;\" src=\"https://embed.plnkr.co/plunk/fUoBkwTp4U0XnMue5K6a?autoCloseSidebar&deferRun&show=preview\" width=\"600\" height=\"400\" frameborder=\"0\" scrolling=\"no\"></iframe>","width":600,"height":400,"thumbnail_url":"https://shot.plnkr.co/fUoBkwTp4U0XnMue5K6a.png?d=2015-08-07T11%3A08%3A34.440Z","thumbnail_width":400,"thumbnail_height":300}