* {
  font-family: sans-serif;
}
h1, h2 {
  text-align: center;
}
svg {
  display: block;
  margin: auto;
  border: 1px solid black;
  border-radius: 6px;
}
div.tooltip {  
  position: absolute;
  padding: 5px;
  font-size: 12px;
  border: 1px solid black;
  pointer-events: none;
  background-color: rgba(255, 255, 255, 0.85);
  z-index: 10;
  opacity: 0;
}
div.select_statistics {
  position: absolute;
  top: 150px;
  left: calc(50% - 480px);
}
div.select_statistics div {
  background-color: #f9b57b;
  text-align: center;
  padding: 3px 10px;
  margin: 7px;
  border: 1px solid black;
  border-radius: 4px;
  cursor: pointer;
}
div.select_statistics div:hover {
  border-color: white;
}
div#attribution {
  position: absolute;
  top: 900px;
  left: calc(50% + 350px);
}
div#attribution a {
	color: black;
}