Please see the following screenshots
Here is an example of single section card (should be no visual differences which is expected)
{F1013906}
Here is an example of a two section card:
{F1013911}
Here is an example of a three section card:
{F1013968}
safari (checking for the shadow styles):
{F1023677}
firefox (checking for the shadow styles):
{F1023678}