OK. It works for the map too.
And what about the menu that disappears from the homepage on the mobiles ?
I can send you the URL by PM if you want.

Yes send me the URL to:
support@joomlaplates.com

And why the mobile menu disappears in mobile views? Did you changed anything?

The menu parameters have not been changed from the quickstart install, I think.

URL sent by PM.

Hello, I have found the problem. The header has a small width if the Widgetkit is disabled.
Add this code to your custom.css

#header {
height:auto!important;
}

It works too ! Thanks a lot Peter (if you are Peter)

The only problem remaining : The logo becomes too small on the phone.
I tried width 100%, in the JCE interface of the module, but no change.

I would be interested by a solution for that too...

Yes youre right, I am Peter.
If you dont want to shrink the logo in mobile devices, add this code to the custom.css

#header-responsive .logo { width: 100%;}