style.css

/**
 * @license
 * Copyright 2019 Google LLC. All Rights Reserved.
 * SPDX-License-Identifier: Apache-2.0
 */
/* [START maps_place_nearby_search] */
/* 
 * Always set the map height explicitly to define the size of the div element
 * that contains the map. 
 */
gmp-map {
    height: 100%;
}

#map-container {
    display: flex;
    flex-direction: row;
    height: 100%;
}

/* 
 * Optional: Makes the sample page fill the window. 
 */
html,
body {
    height: 100%;
    margin: 0;
    padding: 0;
}

.type-select {
    width: 400px;
    height: 32px;
    border: 1px solid #000;
    border-radius: 10px;
    flex-grow: 1;
    padding: 0 10px;
    margin-left: 10px;
    margin-top: 10px;
}

/* [END maps_place_nearby_search] */