.bootstrap-footnote {
	width: 19px;
	height: 10px;
	display: inline-block;
	background: url(ellipsis.png);
	overflow: hidden;
	text-indent: -999px;
	/* margin: 0 2px 0 6px; */
	vertical-align: middle;
}

.popover h3:empty {
	display: none;
}

@media only screen and (-webkit-min-device-pixel-ratio: 2) {
	.bootstrap-footnote {
		background-image: url(ellipsis@2x.png);
		background-size: 100% 100%;
	}
}