body{
	padding:0;
	margin:0;
}
img{
	max-width:100%;
	height:auto;
	/* strictly optional */
	-webkit-transition: width 0.2s ease-in, height 0.2s ease-in;
	transition: width 0.2s ease-in, height 0.2s ease-in;
}

.my-container{
	margin:0 auto;
	background-color:#CCC;
	width:50%;
	position:absolute;
	top:200px;
	right:0;
	left:0;
	bottom:100px;
}

.fit-wrapper{
	position:relative;
}
.fit-toggle{
	position:absolute;
	top:0;
	left:0;
	width:20px;
	height:20px;
	background:red;
}
.maxed-image .fit-toggle{
	display:none;
}