style.css

/* Always set the map height explicitly to define the size of the div */
/* element that contains the map. */
#map {
  height: 100%;
}

/* Optional: Makes the sample page fill the window. */
html,
body {
  height: 100%;
  margin: 0;
  padding: 0;
}
.marker-info {
  font-size: 1.25em;
}
.marker-info::after {
  content: "";
  display: block;
  clear: both;
}
.marker-info img {
  max-width: 200px;
  max-height: 200px;
  object-fit: contain;
  display: block;
  float: left;
  margin-right: 1em;
  margin-bottom: 1em;
}
.marker-info h1 {
  text-align: right;
}
.marker-info table {
  border-collapse: collapse;
}
/***
.marker-info tr {
  border-bottom: 1px solid #aaa;
}
.marker-info tr:last-child {
  border: none;
}
***/
.marker-info tr:nth-child(even) {
  background-color: #F2F3F4;
}
.marker-info td {
  padding-top: .5em;
  padding-bottom: .5em;
}
.marker-info td:first-child {
  font-weight: bold;
}
.marker-info td:nth-child(2) {
  font-weight: bold;
  width: 1em;
}
/* Cluster text container */
div.cluster > div > span {
  font-size: 1.25em;
  color: #fff;
  text-shadow: .1em .1em .2em #000;
}