o4tuna/gist:5be09a003d0fe299466d

## gistfile1.txt
<html>
	<head>

		<title>reveal_hidden_div_and_flash_it.html</title>

		<style>


			@keyframes flash {
			    to {background-color: 	lemonChiffon;}
			}

			div#my_division {
				display:				none;
				animation:				flash 3s ease 250ms 1;
			}


			div#my_division {
				margin:					3rem;
				padding:				2rem;
			}

		</style>

		<script>

			function showHideElement(box,id) {
				var elm = document.getElementById(id)
				elm.style.display = box.checked? "none" : "block";
			}

		</script>

	</head>


	<body>

		<input id="chkIsHidden" type="checkbox" checked value="" onClick="showHideElement(this,'my_division')">&nbsp;Hide my_division

		<div id="my_division">
			<p>Howdy, I'm my_division!</p>
			<p>Peek-a-boo!</p>
		</div>

	<body>

</html>
	<html>
	<head>

	<title>reveal_hidden_div_and_flash_it.html</title>

	<style>


	@keyframes flash {
	to {background-color: lemonChiffon;}
	}

	div#my_division {
	display: none;
	animation: flash 3s ease 250ms 1;
	}


	div#my_division {
	margin: 3rem;
	padding: 2rem;
	}

	</style>

	<script>

	function showHideElement(box,id) {
	var elm = document.getElementById(id)
	elm.style.display = box.checked? "none" : "block";
	}

	</script>

	</head>


	<body>

	<input id="chkIsHidden" type="checkbox" checked value="" onClick="showHideElement(this,'my_division')"> Hide my_division

	<div id="my_division">
	<p>Howdy, I'm my_division!</p>
	<p>Peek-a-boo!</p>
	</div>

	<body>

	</html>