style.css

.mapbox-autocomplete-container {
  display: block;
  position: relative;
  z-index: 10;
}

.mapbox-autocomplete-container > input {
  width: 100%;
}

.mapbox-autocomplete {
  box-shadow: 0 1px 10px rgba(black, 0.2);
  background: #fff;
  max-height: 300px;
  overflow-y: auto;
  width: 100%;
  z-index: 1;
  position: absolute;

  pointer-events: none;
  opacity: 0;

  transition: opacity 0.1s ease;

}

.mapbox-autocomplete.is-open {
  pointer-events: auto;
  opacity: 1;
}

.mapbox-autocomplete .item {
  color: #666;
  padding: 10px 15px;
  display: flex;
  align-items: center;
}
.mapbox-autocomplete img {
  width: 1.2em;
  margin-right: 0.5rem;
}
.mapbox-autocomplete .item.selected {
  background: #eee;
  font-weight: bold;
  color: #333;
}
.mapbox-autocomplete .item:hover {
  background: #f7f7f7;
  cursor: pointer;
}