Sphinx design cards render poorly on phone

[RobPasMue]

Issues seen on PyAnsys Geometry. We might have to adapt our style. When having a look at the documentation on the phone for the following sites we get this behavior:

https://geometry.docs.pyansys.com/version/dev/getting_started/index.html

https://geometry.docs.pyansys.com/version/dev/index.html