CSS for images with source links

source-links-images.css

/* sources */

.image-wrap {
	position: relative;
}

figure.wp-caption .image-wrap {
	display: block;
}

.image-wrap-none,
.image-wrap-center {
	display: block;
	position: relative;
}

.image-wrap-center {
	margin: 0 auto 1.7em;
}

.image-wrap-right,
.image-wrap-left {
	display: inline-block;
	float: right;
	position: relative;
}

.image-wrap-left {
	float: left;
}

 figure.wp-caption .source,
.image-wrap .source {
	background: rgba(0,0,0,0.5);
	font-family: 'freight-sans-pro', sans-serif;
	font-size: 10px;
	font-size: 1rem;
	letter-spacing: 0.5px;
	line-height: 1;
	position: absolute;
	text-transform: uppercase;
	-webkit-transition: opacity 0.2s ease-in-out;
    -moz-transition: opacity 0.2s ease-in-out;
    -o-transition: opacity 0.2s ease-in-out;
    transition: opacity 0.2s ease-in-out;
	opacity: 0;
}

figure.wp-caption:hover .source,
.image-wrap:hover .source {
	opacity: 1;
}

figure.wp-caption .source a,
.image-wrap .source a {
	border: 0 !important;
	color: #fff !important;
	display: block;
	padding: 3px 5px;
	text-decoration: none !important;
}

figure.wp-caption .source a:hover,
.image-wrap .source a:hover {
	text-decoration: underline !important;
}

/* any with caption */
figure.wp-caption .source {
	bottom: 4px;
	right: 4px;
}

figure.wp-caption.alignleft .source {
	left: 4px;
	right: inherit;
}

/* no captions */
.image-wrap-none .source {
	bottom: 4px;
	right: 4px;
}

.image-wrap-right .source {
	bottom: 34px;
	right: -11px;
}

.image-wrap-left .source {
	bottom: 34px;
	left: -11px;
}

.image-wrap-center .source {
	bottom: 4px;
	right: 4px;
}