Create advanced markers using HTML and CSS

Page Summary

• This example demonstrates how to create a custom HTML marker on a Google Map, replacing the default icon.

• The marker is created using the AdvancedMarkerElement class and displays a price tag with custom styling.

• Sample code is provided in both TypeScript and JavaScript, along with the corresponding HTML and CSS.

• Users can experiment with the sample using JSFiddle or Google Cloud Shell, or clone and run it locally with Git and Node.js.

This example shows creating a new marker, replacing the default icon with custom HTML and CSS.

Read the documentation.

TypeScript

const mapElement = document.querySelector('gmp-map')!;

async function init() {
    // Request needed libraries.
    const [{ AdvancedMarkerElement }] = await Promise.all([
        google.maps.importLibrary('marker'),
        google.maps.importLibrary('maps'),
    ]);

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

    const marker = new AdvancedMarkerElement({
        position: { lat: 37.42, lng: -122.1 },
    });
    marker.append(priceTag);
    mapElement.append(marker);
}
void init();
index.ts

Note: Read the guide on using TypeScript and Google Maps.

JavaScript

const mapElement = document.querySelector('gmp-map');

async function init() {
    // Request needed libraries.
    const [{ AdvancedMarkerElement }] = await Promise.all([
        google.maps.importLibrary('marker'),
        google.maps.importLibrary('maps'),
    ]);

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

    const marker = new AdvancedMarkerElement({
        position: { lat: 37.42, lng: -122.1 },
    });
    marker.append(priceTag);
    mapElement.append(marker);
}
void init();
index.js

CSS

/* 
 * Always set the map height explicitly to define the size of the div element
 * that contains the map. 
 */
gmp-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;
    transform: translateY(-8px);
}

.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>
        <script>
            // prettier-ignore
            (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: "GOOGLE_MAPS_API_KEY"
            });
        </script>
    </head>
    <body>
        <gmp-map
            center="37.42,-122.1"
            zoom="14"
            map-id="4504f8b37365c3d0"></gmp-map>
    </body>
</html>
index.html

Clone Sample

Git and Node.js are required to run this sample locally. Follow these instructions to install Node.js and NPM. You will also need a Google Maps API key.

The following commands clone the repository, install dependencies, and copy the environment file.

  git clone https://github.com/googlemaps-samples/js-api-samples.git
  cd js-api-samples
  npm i
  cp .env.template .env

Once you copy the environment file, make sure to open the .env file and replace <Insert your own development API key here> with your actual API key before starting the sample.

  cd samples/advanced-markers-html-simple
  npm start