/* The location pointed to by the popup tip. */
.popup-tip-anchor {
	height: 0;
	position: absolute;
	/* The max width of the info window. */
	width: 200px;
}
/* The bubble is anchored above the tip. */
.popup-bubble-anchor {
	position: absolute;
	width: 100%;
	bottom: /* TIP_HEIGHT= */ 8px;
	left: 0;
}
/* Draw the tip. */
.popup-bubble-anchor::after {
	content: "";
	position: absolute;
	top: 0;
	left: 0;
	/* Center the tip horizontally. */
	transform: translate(-50%, 0);
	/* The tip is a https://css-tricks.com/snippets/css/css-triangle/ */
	width: 0;
	height: 0;
	/* The tip is 8px high, and 12px wide. */
	border-left: 6px solid transparent;
	border-right: 6px solid transparent;
	border-top: /* TIP_HEIGHT= */ 8px solid white;
}
/* The popup bubble itself. */
.popup-bubble-content {
	position: absolute;
	top: 0;
	left: 0;
	transform: translate(-50%, -100%);
	/* Style the info window. */
	background-color: white;
	padding: 5px;
	border-radius: 5px;
	font-family: sans-serif;
	overflow-y: auto;
	max-height: 60px;
	box-shadow: 0px 2px 10px 1px rgba(0,0,0,0.5);
}