Create markers with HTML and CSS
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With advanced markers you can use custom HTML and CSS to create markers with high visual impact, that can feature interactivity and animation. All AdvancedMarkerElement instances are added to the DOM as HTML elements, which you can access via the element property, and manipulate in the same way as any other DOM element. Because AdvancedMarkerElement is a DOM element, you can directly apply CSS styles to the default marker, and create custom markers completely from scratch using HTML and CSS.

Simple HTML marker

This example map shows creating a simple custom HTML marker:

View the source

The following example shows creating a new DIV element, assigning a CSS class and text content to the DIV, then passing the DIV as the value of AdvancedMarkerElement.content:

TypeScript

async function initMap() {
  // Request needed libraries.
  const { Map } = await google.maps.importLibrary("maps") as google.maps.MapsLibrary;
  const { AdvancedMarkerElement } = await google.maps.importLibrary("marker") as google.maps.MarkerLibrary;

  const map = new Map(document.getElementById('map') as HTMLElement, {
    center: { lat: 37.42, lng: -122.1 },
    zoom: 14,
    mapId: '4504f8b37365c3d0',
  });

  const priceTag = document.createElement('div');
  priceTag.className = 'price-tag';
  priceTag.textContent = '$2.5M';

  const marker = new AdvancedMarkerElement({
    map,
    position: { lat: 37.42, lng: -122.1 },
    content: priceTag,
  });
}
initMap();index.ts

JavaScript

async function initMap() {
  // Request needed libraries.
  const { Map } = await google.maps.importLibrary("maps");
  const { AdvancedMarkerElement } = await google.maps.importLibrary("marker");
  const map = new Map(document.getElementById("map"), {
    center: { lat: 37.42, lng: -122.1 },
    zoom: 14,
    mapId: "4504f8b37365c3d0",
  });
  const priceTag = document.createElement("div");

  priceTag.className = "price-tag";
  priceTag.textContent = "$2.5M";

  const marker = new AdvancedMarkerElement({
    map,
    position: { lat: 37.42, lng: -122.1 },
    content: priceTag,
  });
}

initMap();index.js

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;
}

/* HTML marker styles */
.price-tag {
  background-color: #4285F4;
  border-radius: 8px;
  color: #FFFFFF;
  font-size: 14px;
  padding: 10px 15px;
  position: relative;
}

.price-tag::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 100%;
  transform: translate(-50%, 0);
  width: 0;
  height: 0;
  border-left: 8px solid transparent;
  border-right: 8px solid transparent;
  border-top: 8px solid #4285F4;
}
style.css

HTML

<html>
  <head>
    <title>Advanced Marker Simple HTML</title>

    <link rel="stylesheet" type="text/css" href="./style.css" />
    <script type="module" src="./index.js"></script>
  </head>
  <body>
    <div id="map"></div>

    <!-- prettier-ignore -->
    <script>(g=>{var h,a,k,p="The Google Maps JavaScript API",c="google",l="importLibrary",q="__ib__",m=document,b=window;b=b[c]||(b[c]={});var d=b.maps||(b.maps={}),r=new Set,e=new URLSearchParams,u=()=>h||(h=new Promise(async(f,n)=>{await (a=m.createElement("script"));e.set("libraries",[...r]+"");for(k in g)e.set(k.replace(/[A-Z]/g,t=>"_"+t[0].toLowerCase()),g[k]);e.set("callback",c+".maps."+q);a.src=`https://maps.${c}apis.com/maps/api/js?`+e;d[q]=f;a.onerror=()=>h=n(Error(p+" could not load."));a.nonce=m.querySelector("script[nonce]")?.nonce||"";m.head.append(a)}));d[l]?console.warn(p+" only loads once. Ignoring:",g):d[l]=(f,...n)=>r.add(f)&&u().then(()=>d[l](f,...n))})
        ({key: "AIzaSyB41DRUbKWJHPxaFjMAwdrzWzbVKartNGg", v: "weekly"});</script>
  </body>
</html>index.html

Try Sample

JSFiddle.net Google Cloud Shell

Interactive markers

This example shows creating a set of interactive markers that display fictional information when clicked. Most of the functionality in this example is contained within the CSS.

View the source

TypeScript

async function initMap() {
  // Request needed libraries.
  const { Map } = await google.maps.importLibrary("maps") as google.maps.MapsLibrary;
  const { AdvancedMarkerElement } = await google.maps.importLibrary("marker") as google.maps.MarkerLibrary;

  const center = {lat: 37.43238031167444, lng: -122.16795397128632};
  const map = new Map(document.getElementById("map") as HTMLElement, {
    zoom: 11,
    center,
    mapId: "4504f8b37365c3d0",
  });

  for (const property of properties) {
    const AdvancedMarkerElement = new google.maps.marker.AdvancedMarkerElement({
      map,
      content: buildContent(property),
      position: property.position,
      title: property.description,
    });

    AdvancedMarkerElement.addListener("click", () => {
      toggleHighlight(AdvancedMarkerElement, property);
    });
  }
}

function toggleHighlight(markerView, property) {
  if (markerView.content.classList.contains("highlight")) {
  	markerView.content.classList.remove("highlight");
  	markerView.zIndex = null;
  } else {
  	markerView.content.classList.add("highlight");
  	markerView.zIndex = 1;
  }
}

function buildContent(property) {
  const content = document.createElement("div");
  content.classList.add("property");
  content.innerHTML = `
    <div class="icon">
        <i aria-hidden="true" class="fa fa-icon fa-${property.type}" title="${property.type}"></i>
        <span class="fa-sr-only">${property.type}</span>
    </div>
    <div class="details">
        <div class="price">${property.price}</div>
        <div class="address">${property.address}</div>
        <div class="features">
        <div>
            <i aria-hidden="true" class="fa fa-bed fa-lg bed" title="bedroom"></i>
            <span class="fa-sr-only">bedroom</span>
            <span>${property.bed}</span>
        </div>
        <div>
            <i aria-hidden="true" class="fa fa-bath fa-lg bath" title="bathroom"></i>
            <span class="fa-sr-only">bathroom</span>
            <span>${property.bath}</span>
        </div>
        <div>
            <i aria-hidden="true" class="fa fa-ruler fa-lg size" title="size"></i>
            <span class="fa-sr-only">size</span>
            <span>${property.size} ft<sup>2</sup></span>
        </div>
        </div>
    </div>
    `;
  return content;
}

const properties = [{
  address: '215 Emily St, MountainView, CA',
  description: 'Single family house with modern design',
  price: '$ 3,889,000',
  type: 'home',
  bed: 5,
  bath: 4.5,
  size: 300,
  position: {
    lat: 37.50024109655184,
    lng: -122.28528451834352,
  },
}, {
  address: '108 Squirrel Ln &#128063;, Menlo Park, CA',
  description: 'Townhouse with friendly neighbors',
  price: '$ 3,050,000',
  type: 'building',
  bed: 4,
  bath: 3,
  size: 200,
  position: {
    lat: 37.44440882321596,
    lng: -122.2160620727,
  },
},
{
  address: '100 Chris St, Portola Valley, CA',
  description: 'Spacious warehouse great for small business',
  price: '$ 3,125,000',
  type: 'warehouse',
  bed: 4,
  bath: 4,
  size: 800,
  position: {
    lat: 37.39561833718522,
    lng: -122.21855116258479,
  },
}, {
  address: '98 Aleh Ave, Palo Alto, CA',
  description: 'A lovely store on busy road',
  price: '$ 4,225,000',
  type: 'store-alt',
  bed: 2,
  bath: 1,
  size: 210,
  position: {
    lat: 37.423928529779644,
    lng: -122.1087629822001,
  },
}, {
  address: '2117 Su St, MountainView, CA',
  description: 'Single family house near golf club',
  price: '$ 1,700,000',
  type: 'home',
  bed: 4,
  bath: 3,
  size: 200,
  position: {
    lat: 37.40578635332598,
    lng: -122.15043378466069,
  },
}, {
  address: '197 Alicia Dr, Santa Clara, CA',
  description: 'Multifloor large warehouse',
  price: '$ 5,000,000',
  type: 'warehouse',
  bed: 5,
  bath: 4,
  size: 700,
  position: {
    lat: 37.36399747905774,
    lng: -122.10465384268522,
  },
}, {
  address: '700 Jose Ave, Sunnyvale, CA',
  description: '3 storey townhouse with 2 car garage',
  price: '$ 3,850,000',
  type: 'building',
  bed: 4,
  bath: 4,
  size: 600,
  position: {
    lat: 37.38343706184458,
    lng: -122.02340436985183,
  },
}, {
  address: '868 Will Ct, Cupertino, CA',
  description: 'Single family house in great school zone',
  price: '$ 2,500,000',
  type: 'home',
  bed: 3,
  bath: 2,
  size: 100,
  position: {
    lat: 37.34576403052,
    lng: -122.04455090047453,
  },
}, {
  address: '655 Haylee St, Santa Clara, CA',
  description: '2 storey store with large storage room',
  price: '$ 2,500,000',
  type: 'store-alt',
  bed: 3,
  bath: 2,
  size: 450,
  position: {
    lat: 37.362863347890716,
    lng: -121.97802139023555,
  },
}, {
  address: '2019 Natasha Dr, San Jose, CA',
  description: 'Single family house',
  price: '$ 2,325,000',
  type: 'home',
  bed: 4,
  bath: 3.5,
  size: 500,
  position: {
    lat: 37.41391636421949,
    lng: -121.94592071575907,
  },
}];

initMap();index.ts

JavaScript

async function initMap() {
  // Request needed libraries.
  const { Map } = await google.maps.importLibrary("maps");
  const { AdvancedMarkerElement } = await google.maps.importLibrary("marker");
  const center = { lat: 37.43238031167444, lng: -122.16795397128632 };
  const map = new Map(document.getElementById("map"), {
    zoom: 11,
    center,
    mapId: "4504f8b37365c3d0",
  });

  for (const property of properties) {
    const AdvancedMarkerElement = new google.maps.marker.AdvancedMarkerElement({
      map,
      content: buildContent(property),
      position: property.position,
      title: property.description,
    });

    AdvancedMarkerElement.addListener("click", () => {
      toggleHighlight(AdvancedMarkerElement, property);
    });
  }
}

function toggleHighlight(markerView, property) {
  if (markerView.content.classList.contains("highlight")) {
    markerView.content.classList.remove("highlight");
    markerView.zIndex = null;
  } else {
    markerView.content.classList.add("highlight");
    markerView.zIndex = 1;
  }
}

function buildContent(property) {
  const content = document.createElement("div");

  content.classList.add("property");
  content.innerHTML = `
    <div class="icon">
        <i aria-hidden="true" class="fa fa-icon fa-${property.type}" title="${property.type}"></i>
        <span class="fa-sr-only">${property.type}</span>
    </div>
    <div class="details">
        <div class="price">${property.price}</div>
        <div class="address">${property.address}</div>
        <div class="features">
        <div>
            <i aria-hidden="true" class="fa fa-bed fa-lg bed" title="bedroom"></i>
            <span class="fa-sr-only">bedroom</span>
            <span>${property.bed}</span>
        </div>
        <div>
            <i aria-hidden="true" class="fa fa-bath fa-lg bath" title="bathroom"></i>
            <span class="fa-sr-only">bathroom</span>
            <span>${property.bath}</span>
        </div>
        <div>
            <i aria-hidden="true" class="fa fa-ruler fa-lg size" title="size"></i>
            <span class="fa-sr-only">size</span>
            <span>${property.size} ft<sup>2</sup></span>
        </div>
        </div>
    </div>
    `;
  return content;
}

const properties = [
  {
    address: "215 Emily St, MountainView, CA",
    description: "Single family house with modern design",
    price: "$ 3,889,000",
    type: "home",
    bed: 5,
    bath: 4.5,
    size: 300,
    position: {
      lat: 37.50024109655184,
      lng: -122.28528451834352,
    },
  },
  {
    address: "108 Squirrel Ln &#128063;, Menlo Park, CA",
    description: "Townhouse with friendly neighbors",
    price: "$ 3,050,000",
    type: "building",
    bed: 4,
    bath: 3,
    size: 200,
    position: {
      lat: 37.44440882321596,
      lng: -122.2160620727,
    },
  },
  {
    address: "100 Chris St, Portola Valley, CA",
    description: "Spacious warehouse great for small business",
    price: "$ 3,125,000",
    type: "warehouse",
    bed: 4,
    bath: 4,
    size: 800,
    position: {
      lat: 37.39561833718522,
      lng: -122.21855116258479,
    },
  },
  {
    address: "98 Aleh Ave, Palo Alto, CA",
    description: "A lovely store on busy road",
    price: "$ 4,225,000",
    type: "store-alt",
    bed: 2,
    bath: 1,
    size: 210,
    position: {
      lat: 37.423928529779644,
      lng: -122.1087629822001,
    },
  },
  {
    address: "2117 Su St, MountainView, CA",
    description: "Single family house near golf club",
    price: "$ 1,700,000",
    type: "home",
    bed: 4,
    bath: 3,
    size: 200,
    position: {
      lat: 37.40578635332598,
      lng: -122.15043378466069,
    },
  },
  {
    address: "197 Alicia Dr, Santa Clara, CA",
    description: "Multifloor large warehouse",
    price: "$ 5,000,000",
    type: "warehouse",
    bed: 5,
    bath: 4,
    size: 700,
    position: {
      lat: 37.36399747905774,
      lng: -122.10465384268522,
    },
  },
  {
    address: "700 Jose Ave, Sunnyvale, CA",
    description: "3 storey townhouse with 2 car garage",
    price: "$ 3,850,000",
    type: "building",
    bed: 4,
    bath: 4,
    size: 600,
    position: {
      lat: 37.38343706184458,
      lng: -122.02340436985183,
    },
  },
  {
    address: "868 Will Ct, Cupertino, CA",
    description: "Single family house in great school zone",
    price: "$ 2,500,000",
    type: "home",
    bed: 3,
    bath: 2,
    size: 100,
    position: {
      lat: 37.34576403052,
      lng: -122.04455090047453,
    },
  },
  {
    address: "655 Haylee St, Santa Clara, CA",
    description: "2 storey store with large storage room",
    price: "$ 2,500,000",
    type: "store-alt",
    bed: 3,
    bath: 2,
    size: 450,
    position: {
      lat: 37.362863347890716,
      lng: -121.97802139023555,
    },
  },
  {
    address: "2019 Natasha Dr, San Jose, CA",
    description: "Single family house",
    price: "$ 2,325,000",
    type: "home",
    bed: 4,
    bath: 3.5,
    size: 500,
    position: {
      lat: 37.41391636421949,
      lng: -121.94592071575907,
    },
  },
];

initMap();index.js

CSS

:root {
  --building-color: #FF9800;
  --house-color: #0288D1;
  --shop-color: #7B1FA2;
  --warehouse-color: #558B2F;
}

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

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

/*
 * Property styles in unhighlighted state.
 */
.property {
  align-items: center;
  background-color: #FFFFFF;
  border-radius: 50%;
  color: #263238;
  display: flex;
  font-size: 14px;
  gap: 15px;
  height: 30px;
  justify-content: center;
  padding: 4px;
  position: relative;
  position: relative;
  transition: all 0.3s ease-out;
  width: 30px;
}

.property::after {
  border-left: 9px solid transparent;
  border-right: 9px solid transparent;
  border-top: 9px solid #FFFFFF;
  content: "";
  height: 0;
  left: 50%;
  position: absolute;
  top: 95%;
  transform: translate(-50%, 0);
  transition: all 0.3s ease-out;
  width: 0;
  z-index: 1;
}

.property .icon {
  align-items: center;
  display: flex;
  justify-content: center;
  color: #FFFFFF;
}

.property .icon svg {
  height: 20px;
  width: auto;
}

.property .details {
  display: none;
  flex-direction: column;
  flex: 1;
}

.property .address {
  color: #9E9E9E;
  font-size: 10px;
  margin-bottom: 10px;
  margin-top: 5px;
}

.property .features {
  align-items: flex-end;
  display: flex;
  flex-direction: row;
  gap: 10px;
}

.property .features > div {
  align-items: center;
  background: #F5F5F5;
  border-radius: 5px;
  border: 1px solid #ccc;
  display: flex;
  font-size: 10px;
  gap: 5px;
  padding: 5px;
}

/*
 * Property styles in highlighted state.
 */
.property.highlight {
  background-color: #FFFFFF;
  border-radius: 8px;
  box-shadow: 10px 10px 5px rgba(0, 0, 0, 0.2);
  height: 80px;
  padding: 8px 15px;
  width: auto;
}

.property.highlight::after {
  border-top: 9px solid #FFFFFF;
}

.property.highlight .details {
  display: flex;
}

.property.highlight .icon svg {
  width: 50px;
  height: 50px;
}

.property .bed {
  color: #FFA000;
}

.property .bath {
  color: #03A9F4;
}

.property .size {
  color: #388E3C;
}

/*
 * House icon colors.
 */
.property.highlight:has(.fa-house) .icon {
  color: var(--house-color);
}

.property:not(.highlight):has(.fa-house) {
  background-color: var(--house-color);
}

.property:not(.highlight):has(.fa-house)::after {
  border-top: 9px solid var(--house-color);
}

/*
 * Building icon colors.
 */
.property.highlight:has(.fa-building) .icon {
  color: var(--building-color);
}

.property:not(.highlight):has(.fa-building) {
  background-color: var(--building-color);
}

.property:not(.highlight):has(.fa-building)::after {
  border-top: 9px solid var(--building-color);
}

/*
 * Warehouse icon colors.
 */
.property.highlight:has(.fa-warehouse) .icon {
  color: var(--warehouse-color);
}

.property:not(.highlight):has(.fa-warehouse) {
  background-color: var(--warehouse-color);
}

.property:not(.highlight):has(.fa-warehouse)::after {
  border-top: 9px solid var(--warehouse-color);
}

/*
 * Shop icon colors.
 */
.property.highlight:has(.fa-shop) .icon {
  color: var(--shop-color);
}

.property:not(.highlight):has(.fa-shop) {
  background-color: var(--shop-color);
}

.property:not(.highlight):has(.fa-shop)::after {
  border-top: 9px solid var(--shop-color);
}
style.css

HTML

<html>
  <head>
    <title>Advanced Markers with HTML</title>

    <script src="https://use.fontawesome.com/releases/v6.2.0/js/all.js"></script>

    <link rel="stylesheet" type="text/css" href="./style.css" />
    <script type="module" src="./index.js"></script>
  </head>
  <body>
    <div id="map"></div>

    <!-- prettier-ignore -->
    <script>(g=>{var h,a,k,p="The Google Maps JavaScript API",c="google",l="importLibrary",q="__ib__",m=document,b=window;b=b[c]||(b[c]={});var d=b.maps||(b.maps={}),r=new Set,e=new URLSearchParams,u=()=>h||(h=new Promise(async(f,n)=>{await (a=m.createElement("script"));e.set("libraries",[...r]+"");for(k in g)e.set(k.replace(/[A-Z]/g,t=>"_"+t[0].toLowerCase()),g[k]);e.set("callback",c+".maps."+q);a.src=`https://maps.${c}apis.com/maps/api/js?`+e;d[q]=f;a.onerror=()=>h=n(Error(p+" could not load."));a.nonce=m.querySelector("script[nonce]")?.nonce||"";m.head.append(a)}));d[l]?console.warn(p+" only loads once. Ignoring:",g):d[l]=(f,...n)=>r.add(f)&&u().then(()=>d[l](f,...n))})
        ({key: "AIzaSyB41DRUbKWJHPxaFjMAwdrzWzbVKartNGg", v: "weekly"});</script>
  </body>
</html>index.html

Try Sample

JSFiddle.net Google Cloud Shell

Animated markers

This example creates the traditional "bounce-drop" animation using CSS and advanced markers. In the IntersectionObserver, it adds the drop CSS style. The IntersectionObserversees when each marker enters the viewport, and adds the style. Then, the animationend event listener that the createMarker() function added to each marker removes the style.

View the source

TypeScript

/**
   * Returns a random lat lng position within the map bounds.
   * @param {!google.maps.Map} map
   * @return {!google.maps.LatLngLiteral}
   */
 function getRandomPosition(map) {
    const bounds = map.getBounds();
    const minLat = bounds.getSouthWest().lat();
    const minLng = bounds.getSouthWest().lng();
    const maxLat = bounds.getNorthEast().lat();
    const maxLng = bounds.getNorthEast().lng();

    const latRange = maxLat - minLat;

    // Note: longitude can span from a positive longitude in the west to a
    // negative one in the east. e.g. 150lng (150E) <-> -30lng (30W) is a large
    // span that covers the whole USA.
    let lngRange = maxLng - minLng;
    if (maxLng < minLng) {
      lngRange += 360;
    }

    return {
      lat: minLat + Math.random() * latRange,
      lng: minLng + Math.random() * lngRange,
    };
  }

  const total = 100;
  const intersectionObserver = new IntersectionObserver((entries) => {
    for (const entry of entries) {
      if (entry.isIntersecting) {
        entry.target.classList.add('drop');
        intersectionObserver.unobserve(entry.target);
      }
    }
  });

  async function initMap(): Promise<void> {
    // Request needed libraries.
    const { Map } = await google.maps.importLibrary("maps") as google.maps.MapsLibrary;
    const { AdvancedMarkerElement, PinElement } = await google.maps.importLibrary("marker") as google.maps.MarkerLibrary;

    const position = {lat: 37.4242011827985, lng: -122.09242296450893};

    const map = new Map(document.getElementById("map") as HTMLElement, {
      zoom: 14,
      center: position,
      mapId: '4504f8b37365c3d0',
    });

    // Create 100 markers to animate.
    google.maps.event.addListenerOnce(map, 'idle', () => {
      for (let i = 0; i < 100; i++) {
        createMarker(map, AdvancedMarkerElement, PinElement);
      }
    });

    // Add a button to reset the example.
    const controlDiv = document.createElement("div");
    const controlUI = document.createElement("button");

    controlUI.classList.add("ui-button");
    controlUI.innerText = "Reset the example";
    controlUI.addEventListener("click", () => {
      // Reset the example by reloading the map iframe.
      refreshMap();
    });
    controlDiv.appendChild(controlUI);
    map.controls[google.maps.ControlPosition.TOP_CENTER].push(controlDiv);
  }

  function createMarker(map, AdvancedMarkerElement, PinElement) {    
    const pinElement = new PinElement();
    const content = pinElement.element;
    const advancedMarker = new AdvancedMarkerElement({
      position: getRandomPosition(map),
      map: map,
      content: content,
    });

    content.style.opacity = '0'; 
    content.addEventListener('animationend', (event) => { 
      content.classList.remove('drop');
      content.style.opacity = '1';
    });
    const time = 2 + Math.random(); // 2s delay for easy to see the animation
    content.style.setProperty('--delay-time', time +'s');
    intersectionObserver.observe(content);
  }

  function refreshMap() {
      // Refresh the map.
      const mapContainer = document.getElementById('mapContainer');
      const map = document.getElementById('map');
      map!.remove();
      const mapDiv = document.createElement('div');
      mapDiv.id = 'map';
      mapContainer!.appendChild(mapDiv);
      initMap();
  }

initMap();index.ts

JavaScript

/**
   * Returns a random lat lng position within the map bounds.
   * @param {!google.maps.Map} map
   * @return {!google.maps.LatLngLiteral}
   */
function getRandomPosition(map) {
    const bounds = map.getBounds();
    const minLat = bounds.getSouthWest().lat();
    const minLng = bounds.getSouthWest().lng();
    const maxLat = bounds.getNorthEast().lat();
    const maxLng = bounds.getNorthEast().lng();
    const latRange = maxLat - minLat;
    // Note: longitude can span from a positive longitude in the west to a
    // negative one in the east. e.g. 150lng (150E) <-> -30lng (30W) is a large
    // span that covers the whole USA.
    let lngRange = maxLng - minLng;
    if (maxLng < minLng) {
        lngRange += 360;
    }
    return {
        lat: minLat + Math.random() * latRange,
        lng: minLng + Math.random() * lngRange,
    };
}
const total = 100;
const intersectionObserver = new IntersectionObserver((entries) => {
    for (const entry of entries) {
        if (entry.isIntersecting) {
            entry.target.classList.add('drop');
            intersectionObserver.unobserve(entry.target);
        }
    }
});
async function initMap() {
    // Request needed libraries.
    const { Map } = await google.maps.importLibrary("maps");
    const { AdvancedMarkerElement, PinElement } = await google.maps.importLibrary("marker");
    const position = { lat: 37.4242011827985, lng: -122.09242296450893 };
    const map = new Map(document.getElementById("map"), {
        zoom: 14,
        center: position,
        mapId: '4504f8b37365c3d0',
    });
    // Create 100 markers to animate.
    google.maps.event.addListenerOnce(map, 'idle', () => {
        for (let i = 0; i < 100; i++) {
            createMarker(map, AdvancedMarkerElement, PinElement);
        }
    });
    // Add a button to reset the example.
    const controlDiv = document.createElement("div");
    const controlUI = document.createElement("button");
    controlUI.classList.add("ui-button");
    controlUI.innerText = "Reset the example";
    controlUI.addEventListener("click", () => {
        // Reset the example by reloading the map iframe.
        refreshMap();
    });
    controlDiv.appendChild(controlUI);
    map.controls[google.maps.ControlPosition.TOP_CENTER].push(controlDiv);
}
function createMarker(map, AdvancedMarkerElement, PinElement) {
    const pinElement = new PinElement();
    const content = pinElement.element;
    const advancedMarker = new AdvancedMarkerElement({
        position: getRandomPosition(map),
        map: map,
        content: content,
    });
    content.style.opacity = '0';
    content.addEventListener('animationend', (event) => {
        content.classList.remove('drop');
        content.style.opacity = '1';
    });
    const time = 2 + Math.random(); // 2s delay for easy to see the animation
    content.style.setProperty('--delay-time', time + 's');
    intersectionObserver.observe(content);
}
function refreshMap() {
    // Refresh the map.
    const mapContainer = document.getElementById('mapContainer');
    const map = document.getElementById('map');
    map.remove();
    const mapDiv = document.createElement('div');
    mapDiv.id = 'map';
    mapContainer.appendChild(mapDiv);
    initMap();
}
initMap();index.js

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;
}

/* set the default transition time */
:root {
  --delay-time: .5s;
}

#map {
  height: 100%;
}

#mapContainer {
  height: 100%;
}

html,
body {
  height: 100%;
  margin: 0;
  padding: 0;
}

@keyframes drop {
  0% {
    transform: translateY(-200px) scaleY(0.9);
    opacity: 0;
  }
  5% {
    opacity: 0.7;
  }
  50% {
    transform: translateY(0px) scaleY(1);
    opacity: 1;
  }
  65% {
    transform: translateY(-17px) scaleY(0.9);
    opacity: 1;
  }
  75% {
    transform: translateY(-22px) scaleY(0.9);
    opacity: 1;
  }
  100% {
    transform: translateY(0px) scaleY(1);
    opacity: 1;
  }
}
.drop {
  animation: drop 0.3s linear forwards var(--delay-time);
}

.ui-button {
  background-color: #fff;
  border: 0;
  border-radius: 2px;
  box-shadow: 0 1px 4px -1px rgba(0, 0, 0, 0.3);
  margin: 10px;
  padding: 0 0.5em;
  font: 400 18px Roboto, Arial, sans-serif;
  overflow: hidden;
  height: 40px;
  cursor: pointer;
}

.ui-button:hover {
  background: rgb(235, 235, 235);
}
style.css

HTML

<html>
  <head>
    <title>Advanced Markers CSS Animation</title>

    <link rel="stylesheet" type="text/css" href="./style.css" />
    <script type="module" src="./index.js"></script>
  </head>
  <body>
    <div id="mapContainer">
      <div id="map" style="height: 100%"></div>
    </div>

    <!-- prettier-ignore -->
    <script>(g=>{var h,a,k,p="The Google Maps JavaScript API",c="google",l="importLibrary",q="__ib__",m=document,b=window;b=b[c]||(b[c]={});var d=b.maps||(b.maps={}),r=new Set,e=new URLSearchParams,u=()=>h||(h=new Promise(async(f,n)=>{await (a=m.createElement("script"));e.set("libraries",[...r]+"");for(k in g)e.set(k.replace(/[A-Z]/g,t=>"_"+t[0].toLowerCase()),g[k]);e.set("callback",c+".maps."+q);a.src=`https://maps.${c}apis.com/maps/api/js?`+e;d[q]=f;a.onerror=()=>h=n(Error(p+" could not load."));a.nonce=m.querySelector("script[nonce]")?.nonce||"";m.head.append(a)}));d[l]?console.warn(p+" only loads once. Ignoring:",g):d[l]=(f,...n)=>r.add(f)&&u().then(()=>d[l](f,...n))})
        ({key: "AIzaSyA6myHzS10YXdcazAFalmXvDkrYCp5cLc8", v: "weekly"});</script>
  </body>
</html>index.html

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JSFiddle.net

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Animated markers

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