html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  overflow: hidden;
  font-family: sans-serif;
}
#container {
  display: grid;
  height: 100vh;
  width: 100vw;
}
#container[data-count="2"] {
  grid-template-columns: repeat(2, 1fr);
  grid-template-rows: 1fr;
}
#container[data-count="4"] {
  grid-template-columns: repeat(2, 1fr);
  grid-template-rows: repeat(2, 1fr);
}
#container[data-count="6"] {
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(2, 1fr);
}
#container[data-count="9"] {
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(3, 1fr);
}
.map-wrapper {
  position: relative;
  min-width: 0;
  min-height: 0;
}
.map-wrapper.hidden {
  display: none;
}
.map {
  height: 100%;
  width: 100%;
}
.selector {
  position: absolute;
  top: 10px;
  left: 10px;
  z-index: 1000;
  background: rgba(255,255,255,0.9);
  padding: 6px;
  border-radius: 4px;
  font-size: 14px;
}
.layout-selector {
  position: fixed;
  top: auto;
  bottom: 10px;
}