screen-demo/map-example/cesium/Source/Widgets/Geocoder/Geocoder.css

.cesium-viewer-geocoderContainer .cesium-geocoder-input {
  border: solid 1px #444;
  background-color: rgba(40, 40, 40, 0.7);
  color: white;
  display: inline-block;
  vertical-align: middle;
  width: 0;
  height: 32px;
  margin: 0;
  padding: 0 32px 0 0;
  border-radius: 0;
  box-sizing: border-box;
  transition: width ease-in-out 0.25s, background-color 0.2s ease-in-out;
  -webkit-appearance: none;
}

.cesium-viewer-geocoderContainer:hover .cesium-geocoder-input {
  border-color: #aef;
  box-shadow: 0 0 8px #fff;
}

.cesium-viewer-geocoderContainer .cesium-geocoder-input:focus {
  border-color: #ea4;
  background-color: rgba(15, 15, 15, 0.9);
  box-shadow: none;
  outline: none;
}

.cesium-viewer-geocoderContainer:hover .cesium-geocoder-input,
.cesium-viewer-geocoderContainer .cesium-geocoder-input:focus,
.cesium-viewer-geocoderContainer .cesium-geocoder-input-wide {
  padding-left: 4px;
  width: 250px;
}

.cesium-viewer-geocoderContainer .search-results {
  position: absolute;
  background-color: #000;
  color: #eee;
  overflow-y: auto;
  opacity: 0.8;
  width: 100%;
}

.cesium-viewer-geocoderContainer .search-results ul {
  list-style-type: none;
  margin: 0;
  padding: 0;
}

.cesium-viewer-geocoderContainer .search-results ul li {
  font-size: 14px;
  padding: 3px 10px;
}
.cesium-viewer-geocoderContainer .search-results ul li:hover {
  cursor: pointer;
}

.cesium-viewer-geocoderContainer .search-results ul li.active {
  background: #48b;
}

.cesium-geocoder-searchButton {
  background-color: #303336;
  display: inline-block;
  position: absolute;
  cursor: pointer;
  width: 32px;
  top: 1px;
  right: 1px;
  height: 30px;
  vertical-align: middle;
  fill: #edffff;
}

.cesium-geocoder-searchButton:hover {
  background-color: #48b;
}