use shadow dom instead of iframe code example

Example: add shadow to iframe

iframe {margin-top: 20px;margin-bottom: 30px;-moz-border-radius: 12px;-webkit-border-radius: 12px;border-radius: 12px;-moz-box-shadow: 4px 4px 14px #000;-webkit-box-shadow: 4px 4px 14px #000;box-shadow: 4px 4px 14px #000;-moz-transform:rotate(20deg);-webkit-transform:rotate(20deg);-o-transform:rotate(20deg);-ms-transform:rotate(20deg);filter:progid:DXImageTransform.Microsoft.BasicImage(rotation=.2);}