contentPadding property
final
The padding for the input decoration's container.
The decoration's container is the area which is filled if isFilled is
true and bordered per the border. It's the area adjacent to
decoration.icon and above the widgets that contain helperText,
errorText, and counterText.
By default the contentPadding reflects isDense and the type of the
border. If isCollapsed is true then contentPadding is
EdgeInsets.zero.
Implementation
final EdgeInsetsGeometry contentPadding