body {
  font-family: Arial, sans-serif;
  padding: 12px;
  background: #f5f5f5;
  font-size: 12px;
}

ul {
  list-style: none;
  padding-left: 0;
  margin-left: 0;
}

ul ul {
  margin-left: 0;
}

li {
  margin: 4px 0;
  overflow: hidden;
}

.even { background: #E3EECC; }
.odd { background: #ffffff; }

summary {
  display: block;
  width: 100%;
  padding: 8px 12px;
  cursor: pointer;
  list-style: none;
  font-weight: bold;
}
summary::-webkit-details-marker {
  display: none;
}
summary:hover {
  background: rgba(0,0,0,0.03);
}

.leaf {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 12px;
}

.leaf-img {
  max-height: 48px;
  margin-left: 12px;
}

details {
  margin-left: 20px;
}

details > ul {
  border-left: 2px solid #c8e6c9;
  padding-left: 0;
}

a {
  color: #385400;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}