/* Footer social media icons styling */
/* Použití Bootstrap 3 výchozí barvy odkazů #428bca (světle modrá) */

footer {
	padding-bottom: 20px;
}

footer a img {
	/* Bootstrap link blue #428bca */
	filter: invert(47%) sepia(96%) saturate(450%) hue-rotate(169deg) brightness(93%) contrast(89%);
	transition: filter 0.2s;
}

footer a:hover img {
	/* Bootstrap link hover blue #2a6496 */
	filter: invert(31%) sepia(45%) saturate(1245%) hue-rotate(172deg) brightness(94%) contrast(93%);
}