body
{
	font-family: monospace;
}

.conteneur
{
	height: 300px;
	width: 45px;
	border: 5px solid green;
	margin: 25px;
	display: block;
}

.rebond
{
	height: 45px;
	width: 45px;
	background-color: green;
	border-radius: 50px;
	position: relative;
	animation-name: rebond;
	animation-duration: 1.5s;
	animation-iteration-count: infinite;
	animation-timing-function: cubic-bezier(0.2,-0.3,0.8,1);
}

@keyframes rebond
{
	0%
	{
		top: 0px;
	}

	10%
	{
		top: 255px;
	}

	20%
	{
		top: 160px;
	}

	30%
	{
		top: 255px;
	}

	40%
	{
		top: 195px;
	}

	50%
	{
		top: 255px;
	}

	60%
	{
		top: 220px;
	}

	70%
	{
		top: 255px;
	}

	80%
	{
		top: 250px;
	}

	90%
	{
		top: 255px;
	}

	100%
	{
		top: 255px;
	}
}

img   /* ༼⁰o⁰；༽ */
{
	height: 40px;
	padding: 4px;
}