Sketchfab - how to make the size of a 3D-Model responsive?


I wonder how you can make the view of the 3d Model responvise. When I’m in a desktop view everyting works fine but if you go to the mobile, the 3D model is very large and you have to zoom out to see the normal size of the model. I want to know how to make the 3D model adjustable to the viewport. Here is the link Test . Ty in advance:)