diff --git a/comps/form/Form.tsx b/comps/form/Form.tsx
index e29ff82..60ebfd9 100755
--- a/comps/form/Form.tsx
+++ b/comps/form/Form.tsx
@@ -1,10 +1,11 @@
 import { useLocal } from "@/utils/use-local";
-import { FC, useEffect } from "react";
+import { FC, useEffect, useRef } from "react";
 import { FMInternal, FMProps } from "./typings";
 import { formReload } from "./utils/reload";
 import { formInit } from "./utils/init";
 import { createPortal } from "react-dom";
 import { Toaster } from "sonner";
+import get from "lodash.get";
 
 export const Form: FC<FMProps> = (props) => {
   const { PassProp, body } = props;
@@ -15,6 +16,9 @@ export const Form: FC<FMProps> = (props) => {
       formReload(fm);
     },
     fields: {},
+    events: {
+      on_change(name: string, new_value: any) {},
+    },
     submit: null as any,
     error: {} as any,
     internal: {
@@ -25,6 +29,33 @@ export const Form: FC<FMProps> = (props) => {
       },
     },
     props: {} as any,
+    size: {
+      width: 0,
+      height: 0,
+      field: "full",
+    },
+  });
+
+  const ref = useRef({
+    el: null as null | HTMLFormElement,
+    rob: new ResizeObserver(([e]) => {
+      fm.size.height = e.contentRect.height;
+      fm.size.width = e.contentRect.width;
+      if (fm.status === "ready") fm.status = "resizing";
+
+      if (fm.props.layout === "auto") {
+        if (fm.size.width > 650) {
+          fm.size.field = "half";
+        } else {
+          fm.size.field = "full";
+        }
+      } else {
+        if (fm.props.layout === "1-col") fm.size.field = "full";
+        if (fm.props.layout === "2-col") fm.size.field = "half";
+      }
+
+      fm.render();
+    }),
   });
 
   useEffect(() => {
@@ -41,10 +72,45 @@ export const Form: FC<FMProps> = (props) => {
   }
   const toaster_el = document.getElementsByClassName("prasi-toaster")[0];
 
+  const childs = get(
+    body,
+    "props.meta.item.component.props.body.content.childs"
+  ) as any[];
+
+  if (fm.status === "resizing") return null;
+
   return (
-    <>
+    <form
+      onSubmit={(e) => {
+        e.preventDefault();
+        e.stopPropagation();
+        fm.submit();
+      }}
+      ref={(el) => {
+        if (!ref.current.el && el) {
+          ref.current.el = el;
+          ref.current.rob.observe(el);
+        }
+      }}
+      className={cx(
+        "form c-flex-1 c-w-full c-h-full c-relative c-overflow-auto"
+      )}
+    >
       {toaster_el && createPortal(<Toaster cn={cx} />, toaster_el)}
-      {fm.status !== "init" && <PassProp fm={fm}>{body}</PassProp>}
-    </>
+      <div
+        className={cx(
+          "form-inner c-flex c-flex-1 c-flex-wrap c-items-start c-content-start c-absolute c-inset-0"
+        )}
+      >
+        {fm.status !== "init" &&
+          childs.map((child, idx) => {
+            return (
+              <PassProp fm={fm} key={idx}>
+                {child}
+              </PassProp>
+            );
+          })}
+      </div>
+    </form>
   );
 };
diff --git a/comps/form/field/Field.tsx b/comps/form/field/Field.tsx
index 1dc9d11..1bd431d 100755
--- a/comps/form/field/Field.tsx
+++ b/comps/form/field/Field.tsx
@@ -1,23 +1,49 @@
-import { FC } from "react";
+import { FC, useEffect } from "react";
 import { FieldProp } from "../typings";
-import { createField } from "../utils/create-field";
+import { useField } from "../utils/use-field";
 import { Label } from "./Label";
 
 export const Field: FC<FieldProp> = (arg) => {
-  const field = createField(arg);
+  const { fm } = arg;
+  const field = useField(arg);
+
+  const mode = fm.props.label_mode;
+  const w = field.width;
+
+  useEffect(() => {
+    if (field.required && typeof field.required_msg === "function") {
+      const error_msg = field.required_msg(field.name);
+      const error_list = fm.error
+        .get(field.name)
+        .filter((e) => e !== error_msg);
+      if (fm.data[field.name]) {
+        fm.error.set(field.name, [error_msg, ...error_list]);
+      } else {
+        fm.error.set(field.name, error_list);
+      }
+    }
+
+    fm.events.on_change(field.name, fm.data[field.name]);
+  }, [fm.data[field.name]]);
 
   if (field.status === "init") return null;
 
-  const mode = field.label_mode;
   return (
-    <div
+    <label
       className={cx(
         "field",
-        mode === "horizontal" && "",
-        mode === "vertical" && ""
+        "c-flex",
+        w === "auto" && fm.size.field === "full" && "c-w-full",
+        w === "auto" && fm.size.field === "half" && "c-w-1/2",
+        w === "full" && "c-w-full",
+        w === "½" && "c-w-1/2",
+        w === "⅓" && "c-w-1/3",
+        w === "¼" && "c-w-1/4",
+        mode === "horizontal" && "c-flex-row",
+        mode === "vertical" && "c-flex-col"
       )}
     >
-      {mode !== "hidden" && <Label field={field} />}
-    </div>
+      {mode !== "hidden" && <Label field={field} fm={fm} />}
+    </label>
   );
 };
diff --git a/comps/form/field/Input.tsx b/comps/form/field/Input.tsx
index eefd824..83231ab 100755
--- a/comps/form/field/Input.tsx
+++ b/comps/form/field/Input.tsx
@@ -1,3 +1,4 @@
+import { FC } from "react";
 import { FMLocal, FieldLocal } from "../typings";
 
 export const FieldInput: FC<{ field: FieldLocal; fm: FMLocal }> = ({
diff --git a/comps/form/field/Label.tsx b/comps/form/field/Label.tsx
index cabd843..810cb5f 100755
--- a/comps/form/field/Label.tsx
+++ b/comps/form/field/Label.tsx
@@ -1,6 +1,21 @@
 import { FC } from "react";
-import { FieldLocal } from "../typings";
+import { FMLocal, FieldLocal } from "../typings";
 
-export const Label: FC<{ field: FieldLocal }> = ({ field }) => {
-  return <div className={cx("label")}>{field.label}</div>;
+export const Label: FC<{ field: FieldLocal; fm: FMLocal }> = ({
+  field,
+  fm,
+}) => {
+  return (
+    <div
+      className={cx(
+        "label",
+        fm.props.label_mode === "horizontal" &&
+          css`
+            width: ${fm.props.label_width}px;
+          `
+      )}
+    >
+      {field.label}
+    </div>
+  );
 };
diff --git a/comps/form/typings.ts b/comps/form/typings.ts
index 6b46cfb..f06f5e2 100755
--- a/comps/form/typings.ts
+++ b/comps/form/typings.ts
@@ -16,13 +16,14 @@ export type FMProps = {
   layout: "auto" | "1-col" | "2-col";
   meta: any;
   item: any;
+  label_mode: "vertical" | "horizontal" | "hidden";
+  label_width: number;
 };
 
 export type FieldProp = {
   name: string;
   label: string;
   desc?: string;
-  label_mode: "vertical" | "horizontal" | "hidden";
   fm: FMLocal;
   type:
     | "text"
@@ -39,6 +40,7 @@ export type FieldProp = {
     | "master-link"
     | "custom";
   required: "y" | "n";
+  required_msg: (name: string) => string;
   options: FieldOptions;
   on_change: (arg: { value: any }) => void | Promise<void>;
   PassProp: any;
@@ -51,19 +53,23 @@ export type FieldProp = {
   rel_table: string;
   rel_fields: string[];
   rel_query: () => any;
+  width: "auto" | "full" | "½" | "⅓" | "¼";
 };
 
 export type FMInternal = {
-  status: "init" | "loading" | "saving" | "ready";
+  status: "init" | "resizing" | "loading" | "saving" | "ready";
   data: any;
   reload: () => Promise<void>;
   submit: () => Promise<void>;
+  events: {
+    on_change: (name: string, new_value: any) => void;
+  };
   fields: Record<string, FieldLocal>;
   error: {
-    list: { name: string; error: string }[];
-    set: (name: string, error: string) => void;
-    get: (name: string, error: string) => void;
-    clear: () => void;
+    readonly list: { name: string; error: string[] }[];
+    set: (name: string, error: string[]) => void;
+    get: (name: string) => string[];
+    clear: (name?: string) => void;
   };
   internal: {
     reload: {
@@ -73,6 +79,11 @@ export type FMInternal = {
     };
   };
   props: Exclude<FMProps, "body" | "PassProp">;
+  size: {
+    width: number;
+    height: number;
+    field: "full" | "half";
+  };
 };
 export type FMLocal = FMInternal & { render: () => void };
 
@@ -84,7 +95,9 @@ export type FieldInternal = {
   desc: FieldProp["desc"];
   prefix: FieldProp["prefix"];
   suffix: FieldProp["suffix"];
-  label_mode: FieldProp["label_mode"];
+  width: FieldProp["width"];
+  required: boolean;
+  required_msg: FieldProp["required_msg"];
   Child: () => ReactNode;
 };
 export type FieldLocal = FieldInternal & { render: () => void };
diff --git a/comps/form/utils/error.ts b/comps/form/utils/error.ts
index 287507a..cfaea25 100755
--- a/comps/form/utils/error.ts
+++ b/comps/form/utils/error.ts
@@ -1,10 +1,27 @@
 import { FMLocal } from "../typings";
 
 export const formError = (fm: FMLocal) => {
-  const error = {} as FMLocal["error"];
-  error.list = [];
-  error.clear = () => {};
-  error.set = () => {};
-  error.get = () => {};
+  const error = {
+    _internal: {},
+    get list() {
+      const res = Object.entries(this._internal).map(([name, error]) => {
+        return { name, error };
+      });
+
+      return res;
+    },
+    clear(name) {
+      if (name) delete this._internal[name];
+      else this._internal = {};
+    },
+    get(name) {
+      return this._internal[name];
+    },
+    set(name, error) {
+      this._internal[name] = error;
+    },
+  } as FMLocal["error"] & {
+    _internal: Record<string, string[]>;
+  };
   return error;
 };
diff --git a/comps/form/utils/create-field.tsx b/comps/form/utils/use-field.tsx
similarity index 81%
rename from comps/form/utils/create-field.tsx
rename to comps/form/utils/use-field.tsx
index 05482bd..ca3975a 100755
--- a/comps/form/utils/create-field.tsx
+++ b/comps/form/utils/use-field.tsx
@@ -2,7 +2,7 @@ import { useLocal } from "@/utils/use-local";
 import { FMLocal, FieldInternal, FieldProp } from "../typings";
 import { useEffect } from "react";
 
-export const createField = (arg: FieldProp) => {
+export const useField = (arg: FieldProp) => {
   const field = useLocal<FieldInternal>({
     status: "init",
     name: arg.name,
@@ -11,7 +11,9 @@ export const createField = (arg: FieldProp) => {
     desc: arg.desc,
     prefix: arg.prefix,
     suffix: arg.suffix,
-    label_mode: arg.label_mode,
+    width: arg.width,
+    required: arg.required === "y",
+    required_msg: arg.required_msg,
     Child: () => {
       return <arg.PassProp>{arg.child}</arg.PassProp>;
     },