I can't workout how to get the second paragraph to display in this example code. I've only tried it in Firefox.
<!DOCTYPE html>
<html>
<head>
<style>
body {
display: none;
}
.show {
display: initial;
}
</style>
</head>
<body>
<p>para 1</p>
<div class="show">
<p>para 2</p>
</div>
</body>
</html>