* {
  padding: 0;
  margin: 0;
}

html, body {
  touch-action: none;
}

html {
  overflow: hidden;
  background-color: #8ab4f8ff;
}

#legend {
  position: fixed;
  left: 0;
  top: 0;
  margin: 1em;
  padding: 1em;

  font-family: sans-serif;
  font-size: 20px;
  background-color: #fff;
  border-radius: 0.5em;
  box-shadow: 0 0 1em #0004;
}

#legend thead th {
  padding-bottom: 0.5em;
}

#legend .box {
  width: 0;
  height: 0;
  padding: 0.5em;
  border: 1px solid black;
}

#legend tr td:nth-child(2) {
  padding-left: 0.5ch;
}

#city {
  width: 0;
  height: 0;
  padding: 0.3em;
  margin: 0.2em;
  background-color: #000;
  border-radius: 100%;
}