style react native

const costumMargin = function (margin) {
   return {
     marginBottom: margin,
     marginTop: margin,
     marginLeft: margin,
     marginRight: margin
   };
 };
 const costumPadding = function (top, right, bottom, left) {
    return {
      paddingBottom: bottom,
      paddingTop: top,
      paddingLeft: left,
      paddingRight: right
    };
  };