Style Twitter Embed Post

How to Style any Element in Twitter embed post

HTML

<script async src="//platform.twitter.com/widgets.js" charset="utf-8"></script>
<blockquote class="twitter-tweet" data-lang="de"><p lang="de" dir="ltr"><a href="https://t.co/yS8iEI4zS8">https://t.co/yS8iEI4zS8</a> Wie man einen Box Container floatet und den Content smal hält. <a href="https://twitter.com/hashtag/css?src=hash">#css</a> <a href="https://twitter.com/hashtag/html?src=hash">#html</a> <a href="https://twitter.com/hashtag/csstricks?src=hash">#csstricks</a></p>&mdash; SCURRILUS (@scurrilus) <a href="https://twitter.com/scurrilus/status/730680564819345408">12. Mai 2016</a></blockquote>

CSS

twitterwidget::shadow .EmbeddedTweet {
    width: 700px;
    max-width: 700px;
    /* Permalink - use to edit and share this gradient: http://colorzilla.com/gradient-editor/#f0f9ff+0,cbebff+47,a1dbff+100;Blue+3D+%2313 */
  background: #f0f9ff; /* Old browsers */
background: -webkit-linear-gradient(#f0f9ff 0%, #cbebff 47%, #a1dbff 100%);
background: -moz-linear-gradient(#f0f9ff 0%, #cbebff 47%, #a1dbff 100%);
background: -o-linear-gradient(#f0f9ff 0%, #cbebff 47%, #a1dbff 100%);
background: linear-gradient(#f0f9ff 0%, #cbebff 47%, #a1dbff 100%); /* FF3.6-15 */ /* Chrome10-25,Safari5.1-6 */ /* W3C, IE10+, FF16+, Chrome26+, Opera12+, Safari7+ */
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#f0f9ff', endColorstr='#a1dbff',GradientType=0 ); /* IE6-9 */

}