BoxShadow
Container( padding: EdgeInsets.all(20), decoration: BoxDecoration( borderRadius: BorderRadius.circular(20), color: Colors.white, boxShadow: [ BoxShadow( offset: Offset(0, 4), blurRadius: 30, color: kShadowColor, ) ]), )
boxShadow: [ BoxShadow( offset: Offset(0, 10), blurRadius: 22, color: kPrimaryColor.withOpacity(0.22), ), BoxShadow( offset: Offset(-15, -15), blurRadius: 20, color: Colors.white, ) ]