graphhopper-maps/src/layers/DefaultMapPopup.module.css at 251a5fa02b56ef2edeb2c9ccc9d1e5f803ccf893 · graphhopper/graphhopper-maps · GitHub

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@media (prefers-color-scheme: dark) {
    .popup {
        background-color: black;
    }
}
@media (prefers-color-scheme: light) {
    .popup {
        background-color: white;
    }
}

/* todo: this was just copy-pasted from https://openlayers.org/en/latest/examples/popup.html.
   the popup looks ugly still, but at the very minimum the background color needs to be set to make it visible.
   the popup design needs an overhaul anyway... https://github.com/graphhopper/graphhopper-maps/issues/136
   */
.popup {
    position: absolute;
    bottom: 12px;
    left: -50px;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
    padding: 0 15px 0 15px;
    border-radius: 10px;
    border: 1px solid #cccccc;
    font-size: small;
    width: 110px;
}
.popup:after,
.popup:before {
    top: 100%;
    border: solid transparent;
    content: ' ';
    height: 0;
    width: 0;
    position: absolute;
    pointer-events: none;
}
.popup:after {
    border-top-color: white;
    border-width: 10px;
    left: 48px;
    margin-left: -10px;
}
.popup:before {
    border-top-color: #cccccc;
    border-width: 11px;
    left: 48px;
    margin-left: -11px;
}