Is it possible to target elements within a UMAP iframe using CSS?

I have integrated a uMap map into my website. Here is the code:

<iframe id="umapiframe" class="iframe-umap" width="100%" height="300px" frameborder="0" allowfullscreen src="//umap.openstreetmap.fr/fr/map/agroavenir_665397?scaleControl=false&miniMap=false&scrollWheelZoom=false&zoomControl=true&allowEdit=false&moreControl=true&searchControl=null&tilelayersControl=null&embedControl=null&datalayersControl=true&onLoadPanel=none&captionBar=false"></iframe>

While it looks nice overall, I would like to customize some of the CSS. Specifically, I want to move the navigation buttons to the bottom right corner instead of the top left:

https://i.sstatic.net/0W98e.png

In the second image link above, you can see that I was able to locally modify the CSS to achieve the desired result.

However, since the element is within an iframe document, I am unable to directly access it in my CSS file.

https://i.sstatic.net/4zAf2.png

I am frustrated with not being able to permanently implement these changes and see them displayed as I envision.

Is there a way to target the elements inside this iframe using a CSS selector? Alternatively, is there another method to move these elements to the desired location?

Thank you for taking the time to read this.

javascriptcssgoogle-mapsiframeselector

Answer №1

If you want to access an element within an iframe, you can achieve that by using the following code:

const iframe = document.querySelector(/**iframe selector**/)
iframe.contentWindow.document.querySelector(/**element selector**/)

You can then apply styling to it using JavaScript.

For more information, you may refer to the following questions:

How to pick element inside iframe using document.getElementById

Get element from within an iFrame

Answer №2

From what I understand, CSS can only select classes within the same document and an iframe constitutes a separate document, so it seems you cannot achieve this with CSS alone. One possible approach could be to use JavaScript for targeting elements inside an iframe.

Here is a code example:

document.querySelector('iframe').contentDocument.body.querySelector('#some-element').style.backgroundColor = 'red';

Source:

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