rlayers/dist/control/layers.css

React Components for OpenLayers

.ol-layers-control {
    right: 0.5em;
    top: 2.5em;
    background-color: rgba(255,255,255,0.6);
}

.ol-layers-control:hover {
    background-color: rgba(255,255,255,0.9);
}

.ol-layers-control label {
    margin-left: 0.25em;
}

.ol-layers-control>div {
    padding: 0.25em;
}

.ol-layers-control>span>*:first-child {
    margin-left: auto;
}