demo

<!DOCTYPE html>
<html>
<body>
<style>
.html {border-radius: 16px;}
</style>
<p id="kmars">Click the button to change the layout of this paragraph</p>

<a href="/2010/07/demo-v5.0.html">Demo v 5.0</a>
<button onclick="myFunction()">Click Me!</button>

<p>The <abbr title="World Health Organization">WHO</abbr> was founded in 1948.</p>

​x
 
<!DOCTYPE html>
<html>
<body>
<style>↔</style>
<p id="kmars">↔</p>
​
​
<a href="/2010/07/demo-v5.0.html">↔</a>
<button onclick="myFunction()">↔</button>
​
<p>↔</p>
​
​
​
<svg class="html" height="300" width="200">↔</svg>
<svg class="html" height="300" width="200">↔</svg>
<svg class="html" height="300" width="200">↔</svg>