diff --git a/$index.ts b/$index.ts
index 80b13c1..9d7918b 100644
--- a/$index.ts
+++ b/$index.ts
@@ -1,4 +1,6 @@
-import { $Node, $State, $StateOption } from "./index";
+import { $State, $StateArgument, $StateOption } from "./index";
+import { $Node } from "./lib/node/$Node"
+import { $Document } from "./lib/node/$Document"
 import { $Anchor } from "./lib/node/$Anchor";
 import { $Button } from "./lib/node/$Button";
 import { $Form } from "./lib/node/$Form";
@@ -60,7 +62,7 @@ export function $(resolver: any) {
             }
         } else return new $Container(resolver);
     }
-    if (resolver instanceof HTMLElement || resolver instanceof Text || resolver instanceof SVGElement) {
+    if (resolver instanceof Node) {
         if (resolver.$) return resolver.$;
         else return $Util.from(resolver);
     }
@@ -71,6 +73,7 @@ export namespace $ {
     export let anchorPreventDefault: boolean = false;
     export const routers = new Set<Router>;
     export const TagNameElementMap = {
+        'document': $Document,
         'body': $Container,
         'a': $Anchor,
         'p': $Container,
@@ -158,10 +161,11 @@ export namespace $ {
      * @returns 
      */
     export function set<O, K extends keyof O>(
-        object: O, key: K, 
+        object: O, 
+        key: K, 
         value: O[K] extends (...args: any) => any 
-            ? (Parameters<O[K]> | $State<Parameters<O[K]> | undefined>) 
-            : (O[K] | undefined | $State<O[K] | undefined>), 
+            ? (undefined | $StateArgument<Parameters<O[K]>>) 
+            : (undefined | $StateArgument<O[K]>), 
         methodKey?: string) {
             if (value === undefined) return;
             if (value instanceof $State && object instanceof Node) {
diff --git a/index.ts b/index.ts
index 2e65871..f48887d 100644
--- a/index.ts
+++ b/index.ts
@@ -48,4 +48,5 @@ export * from "./lib/node/$Option";
 export * from "./lib/node/$OptGroup";
 export * from "./lib/node/$Textarea";
 export * from "./lib/node/$Image";
-export * from "./lib/node/$AsyncNode";
\ No newline at end of file
+export * from "./lib/node/$AsyncNode";
+export * from "./lib/node/$Document";
\ No newline at end of file
diff --git a/lib/$Util.ts b/lib/$Util.ts
index 0d06872..48b41b6 100644
--- a/lib/$Util.ts
+++ b/lib/$Util.ts
@@ -1,5 +1,7 @@
 import { $State } from "./$State";
+import { $AsyncNode } from "./node/$AsyncNode";
 import { $Container } from "./node/$Container";
+import { $Document } from "./node/$Document";
 import { $Node } from "./node/$Node";
 import { $SVGElement } from "./node/$SVGElement";
 import { $Text } from "./node/$Text";
@@ -38,14 +40,18 @@ export namespace $Util {
         return new $State<T>(value)
     }
 
-    export function from(element: HTMLElement | Text | Node): $Node {
+    export function from(element: Node): $Node {
         if (element.$) return element.$;
         if (element.nodeName.toLowerCase() === 'body') return new $Container('body', {dom: element as HTMLBodyElement});
+        if (element.nodeName.toLowerCase() === '#document') return $Document.from(element as Document);
         else if (element instanceof HTMLElement) {
             const instance = $.TagNameElementMap[element.tagName.toLowerCase() as keyof typeof $.TagNameElementMap];
-            const $node = instance === $Container ? new instance(element.tagName, {dom: element}) : new instance({dom: element} as any);
+            const $node = instance === $Container 
+                ? new instance(element.tagName, {dom: element})
+                //@ts-expect-error
+                : new instance({dom: element} as any);
             if ($node instanceof $Container) for (const childnode of Array.from($node.dom.childNodes)) {
-                $node.children.add($(childnode));
+                $node.children.add($(childnode as any));
             }
             return $node as $Node;
         }
diff --git a/lib/node/$AsyncNode.ts b/lib/node/$AsyncNode.ts
index 5f233ec..4865332 100644
--- a/lib/node/$AsyncNode.ts
+++ b/lib/node/$AsyncNode.ts
@@ -1,12 +1,13 @@
 import { $Node } from "./$Node";
-
+export interface $AsyncNodeOptions {
+    dom?: Node;
+}
 export class $AsyncNode<N extends $Node = $Node> extends $Node {
     dom: Node = document.createElement('async');
     loaded: boolean = false;
-    constructor($node?: Promise<N>) {
+    constructor(options?: $AsyncNodeOptions) {
         super()
         this.dom.$ = this;
-        if ($node) $node.then($node => this._loaded($node));
     }
 
     await<T extends $Node = $Node>($node: Promise<T>) {
diff --git a/lib/node/$Container.ts b/lib/node/$Container.ts
index 06b2b66..8ce02e3 100644
--- a/lib/node/$Container.ts
+++ b/lib/node/$Container.ts
@@ -1,7 +1,7 @@
 import { $Element, $ElementOptions } from "./$Element";
 import { $NodeManager } from "../$NodeManager";
 import { $Node } from "./$Node";
-import { $State } from "../$State";
+import { $State, $StateArgument } from "../$State";
 import { $Text } from "./$Text";
 import { $HTMLElement, $HTMLElementOptions } from "./$HTMLElement";
 
@@ -47,6 +47,17 @@ export class $Container<H extends HTMLElement = HTMLElement> extends $HTMLElemen
 
     //**Query selector of child elements */
     $all<E extends $Element>(query: string) { return Array.from(this.dom.querySelectorAll(query)).map($dom => $($dom) as E) }
+
+    get scrollHeight() { return this.dom.scrollHeight }
+    get scrollWidth() { return this.dom.scrollWidth }
+    
+    scrollTop(): number;
+    scrollTop(scrollTop: $StateArgument<number> | undefined): this
+    scrollTop(scrollTop?: $StateArgument<number> | undefined) { return $.fluent(this, arguments, () => this.dom.scrollTop, () => $.set(this.dom, 'scrollTop', scrollTop as any))}
+    
+    scrollLeft(): number;
+    scrollLeft(scrollLeft: $StateArgument<number> | undefined): this
+    scrollLeft(scrollLeft?: $StateArgument<number> | undefined) { return $.fluent(this, arguments, () => this.dom.scrollLeft, () => $.set(this.dom, 'scrollLeft', scrollLeft as any))}
 }
 
 export type $ContainerContentBuilder<P extends $Container> = OrMatrix<$ContainerContentType> | (($node: P) => OrMatrix<$ContainerContentType>)
diff --git a/lib/node/$Document.ts b/lib/node/$Document.ts
new file mode 100644
index 0000000..486a1d6
--- /dev/null
+++ b/lib/node/$Document.ts
@@ -0,0 +1,40 @@
+import { $Element, $DOMRect } from "./$Element";
+import { $Node } from "./$Node";
+export class $Document extends $Node {
+    dom: Node;
+    constructor(document: Document) {
+        super()
+        this.dom = document;
+        this.dom.$ = this;
+    }
+
+    domRect(target?: $Element | $DOMRect) {
+        const this_rect: $DOMRect = {
+            bottom: innerHeight,
+            height: innerHeight,
+            left: 0,
+            right: innerWidth,
+            top: 0,
+            width: innerWidth,
+            x: 0,
+            y: 0
+        };
+        if (!target) return this_rect;
+        const target_rect = target instanceof $Element ? target.dom.getBoundingClientRect() : target;
+        const rect: $DOMRect = {
+            ...this_rect,
+            top: this_rect.top - target_rect.top,
+            left: this_rect.left - target_rect.left,
+            right: this_rect.right - target_rect.left,
+            bottom: this_rect.bottom - target_rect.top,
+            x: this_rect.x - target_rect.x,
+            y: this_rect.y - target_rect.y,
+        }
+        return rect;
+    }
+
+    static from(document: Document) {
+        if (document.$ instanceof $Document) return document.$
+        else return new $Document(document);
+    }
+}
\ No newline at end of file
diff --git a/lib/node/$Element.ts b/lib/node/$Element.ts
index 3537a38..6026ef6 100644
--- a/lib/node/$Element.ts
+++ b/lib/node/$Element.ts
@@ -92,4 +92,22 @@ export class $Element<H extends HTMLElement | SVGElement = HTMLElement> extends
     getAnimations(options?: GetAnimationsOptions) { return this.dom.getAnimations(options) }
 
     get dataset() { return this.dom.dataset }
-}
\ No newline at end of file
+
+    domRect(target?: $Element | $DOMRect) {
+        const this_rect = this.dom.getBoundingClientRect();
+        if (!target) return this_rect;
+        const target_rect = target instanceof $Element ? target.dom.getBoundingClientRect() : target;
+        const rect: $DOMRect = {
+            ...this_rect,
+            top: this_rect.top - target_rect.top,
+            left: this_rect.left - target_rect.left,
+            right: this_rect.right - target_rect.left,
+            bottom: this_rect.bottom - target_rect.top,
+            x: this_rect.x - target_rect.x,
+            y: this_rect.y - target_rect.y,
+        }
+        return rect;
+    }
+}
+
+export type $DOMRect = Omit<DOMRect, 'toJSON'>;
\ No newline at end of file
diff --git a/lib/node/$Node.ts b/lib/node/$Node.ts
index 59d0194..e62be09 100644
--- a/lib/node/$Node.ts
+++ b/lib/node/$Node.ts
@@ -60,9 +60,9 @@ export abstract class $Node<N extends Node = Node> {
 
     self(callback: ($node: this) => void) { callback(this); return this; }
     inDOM() { return document.contains(this.dom); }
-    isElement(): $Element | undefined {
-        if (this instanceof $Element) return this;
-        else return undefined;
+    isElement(): this is $Element {
+        if (this instanceof $Element) return true;
+        else return false;
     }
 
     get parent() {
diff --git a/package.json b/package.json
index 0aaa293..105c9bb 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
     "name": "fluentx",
     "description": "Fast, fluent, simple web builder",
-    "version": "0.0.7",
+    "version": "0.0.9",
     "type": "module",
     "module": "index.ts",
     "author": {