Opacity: Adjust the opacity of the content container shadow.
Horizontal offset: Set the horizontal offset (in pixels) for the shadow of the content container, creating a shadow effect to the left or right.
Vertical offset: Set the vertical offset (in pixels) for the shadow of the content container, creating a shadow effect above or below.
Blur: Set the blur radius (in pixels) for the content container shadow, creating a soft, blurred shadow.