Hello Cordula, 

It can be that there is a conflict with the CSS of your theme or some other plugin that you have. Could you please delete your website's and browser's cache and send me the URL of your page where you have Amelia so we can check it out?

Hello Cordula, 

The issue is coming from your theme, unfortunately, this is the CSS that is causing the issue: 

svg {
    display: block;
    height: 140vh;
    left: Opx;
    margin: auto
}

Please try adding this format HTML to the page where you have your Amelia shortcode :

<style>
svg {
   height: inherit !important;
}

</style>

and let me know if this helped.

You are welcome, Cordula. 

Glad to see that!

If you have any other questions or concerns feel free to open a new ticket and we will gladly help.