lychee/src/styles/_imageview.scss

#imageview {

	position: fixed;
	display: none;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background-color: rgba(10, 10, 10, .98);
	transition: background-color .3s;

	/* Modes ------------------------------------------------*/
	&.view { background-color: inherit; }

	&.full { background-color: black(1); }

	/* ImageView ------------------------------------------------*/
	#image {
		position: absolute;
		top: 60px;
		right: 30px;
		bottom: 30px;
		left: 30px;
		background-repeat: no-repeat;
		background-position: 50% 50%;
		background-size: contain;
		transition: top .3s, right .3s, bottom .3s, left .3s, margin-top .3s, opacity .2s, transform .3s $timingBounce;
		animation-name: zoomIn;
		animation-duration: .3s;
		animation-timing-function: $timingBounce;
		will-change: transform;

		&.small {
			top: 50%;
			right: auto;
			bottom: auto;
			left: 50%;
		}

		&.full {
			top: 0;
			right: 0;
			bottom: 0;
			left: 0;
		}
	}

	/* Previous/Next Buttons ------------------------------------------------*/
	.arrow_wrapper {
		position: fixed;
		width: 15%;
		height: calc(100% - 60px);
		top: 60px;

		&--previous { left: 0; }

		&--next { right: 0; }

		a {
			position: fixed;
			top: 50%;
			margin: -19px 0 0;
			padding: 8px 12px;
			width: 16px;
			height: 22px;
			// The background-image will be styled dynamically via JS
			// background-image: linear-gradient(to bottom, rgba(0, 0, 0, .4), rgba(0, 0, 0, .4)), url('');
			background-size: 100% 100%;
			border: 1px solid white(.8);
			opacity: .6;
			z-index: 2;
			transition: transform .2s ease-out, opacity .2s ease-out;
			will-change: transform;

			&#previous {
				left: -1px;
				transform: translateX(-100%);
			}

			&#next {
				right: -1px;
				transform: translateX(100%);
			}
		}

		&:hover a#previous,
		&:hover a#next { transform: translateX(0); }

		a:hover { opacity: 1; }

		.iconic {
			fill: white(.8);
			filter: drop-shadow(0 1px 0 black(.4));
		}
	}

}