CSS Default Values For HTML Elements - blockquote Example

<!DOCTYPE html>
<html>
<head>
<style>
/*
==============(blockquote)==============
*/
blockquote {
  display: block;
  margin-top: 1em;
  margin-bottom: 1em;
  margin-left: 40px;
  margin-right: 40px;
}
/*
==============(blockquote)==============
*/
</style>
</head>
<body>
<h1>CSS Default Value For <kbd>(blockquote)</kbd></h1>
<div class="content">
<p>By default, "blockquote" element is displayed like this:</p>
<blockquote>
Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
</blockquote>
<h2>Default CSS Properties</h2>
<pre class="default">
blockquote {
  display: block;
  margin-top: 1em;
  margin-bottom: 1em;
  margin-left: 40px;
  margin-right: 40px;
}
</pre>
</div>

<!--============= End =============-->
<script>
var h=document.querySelector("h1");h.style.padding="30px",h.style.background="#333",h.style.color="#fff",h.style.boxShadow="0 0 3px 0 #aaa",h.style.borderTopLeftRadius="5px",h.style.borderTopRightRadius="5px";var k=document.querySelectorAll("h1 kbd");k.forEach(function(e){e.style.color="#0f0"});var c=document.querySelector(".content");c.style.cssText="background:#f8f9fa;box-shadow:0 0 3px 0 #aaa;border-bottom-left-radius:5px;border-bottom-right-radius:5px;padding:20px 30px;margin-top:-22px";var p=document.querySelector(".default");p.style.cssText="background:#fefefe;box-shadow:inset 0 0 3px 0 #aaa;border-left:5px solid #333;padding:10px";
</script>
</body>
</html>