Iris/src/scss/components/_images.scss

.thumbnail {
	width: 100%;
	max-width: 300px;
	overflow: hidden;
	position: relative;
	
	.image {
		width: 100%;
		padding-bottom: 100%;
		position: relative;
		background-repeat: no-repeat;
		background-color: lighten(colour(dark_grey), 2%);
		background-position: 50% 50%;
		background-size: cover;
		border-radius: 3px;

		.light-theme & {
			background-color: colour(faint_grey);
		}
	}

	.zoom {
		@include animate();
		display: none;
		position: absolute;
		bottom: 5px;
		right: 5px;
		z-index: 1;
		padding: 10px;
		border-radius: 100%;
		background: rgba(0,0,0,0.4);
		font-size: 12px;
		cursor: pointer;
		color: #FFFFFF;
		border: 0;

		&:hover {
			background: colour(black);
		}
	}

	&.small {
		max-width: 50px;
	}

	&.circle {
		.image {
			border-radius: 50%;
		}

		.zoom {
			bottom: 0;
			right: 0;
		}
	}

	&:hover {
		.zoom {
			display: block;
		}
	}
}

.playback-controls {
	z-index: 3;
}