What is the best way to apply css styles to buttons in Leaflet?

Trying to customize the CSS for the zoom buttons in Leaflet, but unable to assign a class or id. How can I access them?

Any suggestions?

Thanks!

Map declaration:

L.tileLayer('https://api.tiles.mapbox.com/v4/{id}/{z}/{x}/{y}.png?access_token={accessToken}', {
    attribution: 'Map data &copy; <a href="https://www.openstreetmap.org/">OpenStreetMap</a> contributors, <a href="https://creativecommons.org/licenses/by-sa/2.0/">CC-BY-SA</a>, Imagery © <a href="https://www.mapbox.com/">Mapbox</a>',
    maxZoom: 18,
    id: 'mapbox.streets',
    accessToken: 'pk.eyJ1IjoicHcxN2wwMDgiLCJhIjoiY2pua2c2OWxuMGVkOTNxbWh5MWNqajEwdyJ9.X_SuGwNGs12TwCsrsUvBxw'
}).addTo(map);

Adding the zoom feature:

L.control.zoom({
    position: 'topright',
}).addTo(map);

Upon page load, zoom button appears with Leaflet classes. How can I make custom changes to them?

javascriptcssleaflet

Answer №1

To customize the appearance of the zoom buttons, you can modify the built-in CSS selectors in the following way:

.leaflet-touch .leaflet-bar a {
  width: 50px;
  background-color: blue;
}

var map = L.map('mapid').setView([51.505, -0.09], 13);

L.tileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {
  attribution: '&copy; <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors'
}).addTo(map);

L.marker([51.5, -0.09]).addTo(map)
  .bindPopup('A customizable popup with CSS3.<br> Easy to style.')
  .openPopup();
#mapid {
  height: 180px;
}

.leaflet-touch .leaflet-bar a {
  width: 50px;
  background-color: blue;
}

body {
  margin: 0px;
}
<link rel="stylesheet" href="https://unpkg.com/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="1e626b6f68626b7a4554352f352b">[email protected]</a>/dist/leaflet.css" integrity="sha512-puBpdR0798OZvTTbP4A8Ix/l+A4dHDD0DGqYW6RQ+9jxkRFclaxxQb/SJAWZfWAkuyeQUytO7+7N4QKrDh+drA==" crossorigin="" />
<script src="https://unpkg.com/<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="213da43f39393c39323304797b727770"},"|g|r":"","format_args":[],"remove_css_class":[""],"css_classes":"atomic_group"},{"start":202,"end":222,"attributes":{"format_args":[],"annotation":""},"value":"[{\"text\":\" Easily customizable.\"}]"}]' tabindex="0" data-permitted-grammar="true">[email protected]</a>/dist/leaflet.js" integrity="sha512-QVftwZFqvtRNi0ZyCtsznlKSWOStnDORoefr1enyq5mVL4tmKB3S/EnC3rRJcxCPavG10IcrVGSmPh6Qw5lwrg==" crossorigin=""></script>

<div id="mapid"></div>

Alternatively, you can achieve this using JavaScript:

document.getElementsByClassName("leaflet-control-zoom-out")[0].style.setProperty('width', '50px');

document.getElementsByClassName("leaflet-control-zoom-out")[0].style.setProperty('background-color', 'blue');

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