Altitude data not present.

Hello, I am discovering ZH OpenStreetMap. I am very happy. After spending a lot of time understanding how it works.
I will continue to explore ZH OpenStreetMap.Well, as we generally don't come to a forum just to congratulate the developers, I come with my little problems.
The problem that bothers me the most is the size of the map. I haven't found how to make the map 100% of its parent rather than defining a size in pixels.
The second problem is the altitude under the map. It does not return the values, there I think it's a bug because on the Décathlon website, this same file is well interpreted with the elevation values. Here is the site to see the problem:  w.alid.fr/blog/index.php/parcours/routine-j1?view=map&id=2&mapzoom=14&externalmarkerlink=0

Merci beaucoup.

Hi
In your GPX file there is no elements ele, which should contain elevation data
Only lat|lng data

Look at your file
 

I parse file and look that tag

  Thank you for your quick response.
I don't understand how the Decathlon platform manages to display the elevations.

I think it comes from the mode of transaction.
In one case, it's the application that transmits the data, and in the other case, it's an export from the application to the PC of the data into a GPX file.

Sorry, I didn't think to check the file.

Google has elevation service, it has elevation data, and service can consume it and display this information

Thank you for this information. I didn't know how that was possible.

And regarding the possibility of sizing the map in % rather than Px for the responsive side of the site?

Hi
For size: you can enter 0 for width, and will get 100%

As for height - you can do the same, but modern templates have nested divs, and 100% of height collapse nested, because all parent divs need to have height for not collapsing