.droparea {
	position:relative;
	text-align: center;
}
.multiple {
	position:relative;
	height: 20px;
}
.droparea div, .droparea input, .multiple div, .multiple input {
	position: absolute;
	top:0;
	width: 100%;
	height: 100%;
}
.droparea input, .multiple input {
	cursor: pointer; 
	opacity: 0; 
}
.droparea .instructions, .multiple .instructions {
	border: 2px dashed #ddd;
	opacity: .8;
}
.droparea .instructions.over, .multiple .instructions.over {
	border: 2px dashed #000;
	background: #ffa;
}
.droparea .progress, .multiple .progress {
	position:absolute;
	bottom: 0;
	width: 100%;
	height: 0;
	color: #fff;
	background: #6b0;
}
.multiple .progress {
	width: 0;
	height: 100%;
}