type this code into the address bar to see what happens!
To make a popup: javascript:alert("HELLO") :)
Edit a page: javascript:document.body.contentEditable='true'; document.designMode='on'; void 0
This is how to make a html button for my html video: <html>
<head>
<title>Button</title>
<script language="javascript" type="text/javascript">
function hello()
{
alert("It actually Works!!")
}
</script>
</head>
<body>
<button onclick="hello();">Click Me!!</button>
</body>
</html>
