From CruisersWiki
/*
https://github.com/walkermatt/ol-popup
*/
.ol-popup {
display: none;
position: absolute;
background-color: white;
padding: 15px 25px 15px 15px;
border: 1px solid #cccccc;
bottom: 12px;
left: -50px;
}
.ol-popup:after, .ol-popup:before {
top: 100%;
border: solid transparent;
content: " ";
height: 0;
width: 0;
position: absolute;
pointer-events: none;
}
.ol-popup:after {
border-top-color: white;
border-width: 10px;
left: 48px;
margin-left: -10px;
}
.ol-popup:before {
border-top-color: #cccccc;
border-width: 11px;
left: 48px;
margin-left: -11px;
}
.ol-popup-content {
min-width: 170px;
max-height: 200px;
overflow-x: auto;
}
.ol-popup-closer {
position: absolute;
top: 2px;
right: 2px;
font-size: 150%;
padding: 0 4px;
color: gray;
text-decoration: none;
}
.ol-popup-closer:after {
content: "\2716";
}
.ol-popup div.infoResult {
min-width: 130px;
}
.ol-popup div.infoResult p {
padding: 0.1em;
margin: 0;
}
.ol-popup-content h3 {
margin: 0.25em 0;
}
.ol-popup.marker {
margin-bottom: 30px;
}
/*
*/