html,
body {
  height: 100%;
  margin: 0;
  font-family: Verdana, Geneva, Tahoma, sans-serif;
}
a:link, a:visited, a:hover, a:active {
  color: white;
  text-decoration: none;
}
.box {
  display: flex;
  flex-flow: column;
  height: 100%;
}
.box .row.header {
  flex: 0 1 auto;
  text-align: center;
  background: rgb(74, 145, 238);
  color: white;
  padding: 5px;
}
.box .row.map {
  flex: 1 1 auto;
}
.menu {
  z-index: 101;
  position: absolute;
  width: 200px;
  top: 0;
  left: 0;
  margin: 0;
  background: rgb(74, 145, 238);
  color: white;
  border: 0;
  padding: 12px;
}
.info {
  cursor: pointer;
  display: block;
  float: right;
  z-index: 100;
  position: absolute;
  text-align: center;
  width: 100%;
  display: none;
  margin-top: 28px;
}
.info img {
  border: 10px solid rgb(74, 145, 238);
  border-top: 0px;
}
.slider {
  -webkit-appearance: none;
  height: 15px;
  border-radius: 5px;
  background: #d3d3d3;
  outline: none;
  -webkit-transition: .2s;
  transition: opacity .2s;
  margin-bottom: 10px;
}

.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 23px;
  height: 23px;
  border-radius: 50%;
  background: rgb(255, 255, 255);
  cursor: pointer;
}

.slider::-moz-range-thumb {
  width: 23px;
  height: 23px;
  border-radius: 50%;
  background: rgb(255, 255, 255);
  cursor: pointer;
}