div {
	display: block;
	color: blue;
	font-family: "Arial", Helvetica, sans-serif;
}

.instruction {
	display: block;
	color: blue;
	font-family: "Arial", Helvetica, sans-serif;
}

.warning {
	display: block;
	color: red;
	font-family: "Arial", Helvetica, sans-serif;
}

main {
	width: 500px;
}

#dropZone {
	width: 100%;
	height: 100%;
}

#currentImage {
	width: 400px;
	height: 400px;
}

#currentImage img {
	max-width: 100%;
	height: auto;
}