diff --git a/seamless/types/html.py b/seamless/types/html.py
index 2373b26..7e1477b 100644
--- a/seamless/types/html.py
+++ b/seamless/types/html.py
@@ -4,6 +4,7 @@
 if TYPE_CHECKING:
     from ..styling import StyleObject
     from .. import JS
+    from . import Renderable, Primitive    
 
 from .events import *
 
@@ -127,7 +128,7 @@ class HTMLEventProps(TypedDict, total=False):
     on_waiting: EventFunction[Event]
 
 
-class HTMLElement(TypedDict, total=False, closed=False):
+class HTMLElement(TypedDict, total=False):
     access_key: str
     auto_capitalize: str
     class_name: str | Iterable[str]
@@ -148,11 +149,11 @@ class HTMLElement(TypedDict, total=False, closed=False):
 
     init: "JS"
 
+class HTMLElementProps(HTMLElement, AriaProps, HTMLEventProps, closed=True):
 
-class HTMLElementProps(HTMLElement, AriaProps, HTMLEventProps):
-    pass
+    __extra_items__: "Renderable | Primitive"
 
-class HTMLAnchorElement(HTMLElementProps, total=False, closed=False):
+class HTMLAnchorElement(HTMLElementProps, total=False):
     download: str
     href: str
     href_lang: str
@@ -163,7 +164,7 @@ class HTMLAnchorElement(HTMLElementProps, total=False, closed=False):
     type: str
 
 
-class HTMLAreaElement(HTMLElementProps, total=False, closed=False):
+class HTMLAreaElement(HTMLElementProps, total=False):
     alt: str
     coords: str
     download: str
@@ -176,7 +177,7 @@ class HTMLAreaElement(HTMLElementProps, total=False, closed=False):
     target: str
 
 
-class HTMLAudioElement(HTMLElementProps, total=False, closed=False):
+class HTMLAudioElement(HTMLElementProps, total=False):
     auto_play: str
     controls: str
     loop: str
@@ -185,20 +186,20 @@ class HTMLAudioElement(HTMLElementProps, total=False, closed=False):
     src: str
 
 
-class HTMLBRElement(HTMLElementProps, total=False, closed=False):
+class HTMLBRElement(HTMLElementProps, total=False):
     pass  # No additional attributes
 
 
-class HTMLBaseElement(HTMLElementProps, total=False, closed=False):
+class HTMLBaseElement(HTMLElementProps, total=False):
     href: str
     target: str
 
 
-class HTMLBodyElement(HTMLElementProps, total=False, closed=False):
+class HTMLBodyElement(HTMLElementProps, total=False):
     background: str
 
 
-class HTMLButtonElement(HTMLElementProps, total=False, closed=False):
+class HTMLButtonElement(HTMLElementProps, total=False):
     auto_focus: str
     disabled: str
     form: str
@@ -212,45 +213,45 @@ class HTMLButtonElement(HTMLElementProps, total=False, closed=False):
     value: str
 
 
-class HTMLCanvasElement(HTMLElementProps, total=False, closed=False):
+class HTMLCanvasElement(HTMLElementProps, total=False):
     height: str
     width: str
 
 
-class HTMLDataElement(HTMLElementProps, total=False, closed=False):
+class HTMLDataElement(HTMLElementProps, total=False):
     value: str
 
 
-class HTMLDataListElement(HTMLElementProps, total=False, closed=False):
+class HTMLDataListElement(HTMLElementProps, total=False):
     pass  # No additional attributes
 
 
-class HTMLDetailsElement(HTMLElementProps, total=False, closed=False):
+class HTMLDetailsElement(HTMLElementProps, total=False):
     open: str
 
 
-class HTMLDialogElement(HTMLElementProps, total=False, closed=False):
+class HTMLDialogElement(HTMLElementProps, total=False):
     open: str
 
 
-class HTMLDivElement(HTMLElementProps, total=False, closed=False):
+class HTMLDivElement(HTMLElementProps, total=False):
     pass  # No additional attributes
 
 
-class HTMLEmbedElement(HTMLElementProps, total=False, closed=False):
+class HTMLEmbedElement(HTMLElementProps, total=False):
     height: str
     src: str
     type: str
     width: str
 
 
-class HTMLFieldSetElement(HTMLElementProps, total=False, closed=False):
+class HTMLFieldSetElement(HTMLElementProps, total=False):
     disabled: str
     form: str
     name: str
 
 
-class HTMLFormElement(HTMLElementProps, total=False, closed=False):
+class HTMLFormElement(HTMLElementProps, total=False):
     accept_charset: str
     action: str
     auto_complete: str
@@ -261,23 +262,23 @@ class HTMLFormElement(HTMLElementProps, total=False, closed=False):
     target: str
 
 
-class HTMLHRElement(HTMLElementProps, total=False, closed=False):
+class HTMLHRElement(HTMLElementProps, total=False):
     pass  # No additional attributes
 
 
-class HTMLHeadElement(HTMLElementProps, total=False, closed=False):
+class HTMLHeadElement(HTMLElementProps, total=False):
     pass  # No additional attributes
 
 
-class HTMLHeadingElement(HTMLElementProps, total=False, closed=False):
+class HTMLHeadingElement(HTMLElementProps, total=False):
     pass  # No additional attributes
 
 
-class HTMLHtmlElement(HTMLElementProps, total=False, closed=False):
+class HTMLHtmlElement(HTMLElementProps, total=False):
     pass  # No additional attributes
 
 
-class HTMLIFrameElement(HTMLElementProps, total=False, closed=False):
+class HTMLIFrameElement(HTMLElementProps, total=False):
     allow: str
     allow_fullscreen: str
     csp: str
@@ -295,7 +296,7 @@ class HTMLIFrameElement(HTMLElementProps, total=False, closed=False):
     width: str
 
 
-class HTMLImageElement(HTMLElementProps, total=False, closed=False):
+class HTMLImageElement(HTMLElementProps, total=False):
     alt: str
     cross_origin: str
     decoding: str
@@ -312,7 +313,7 @@ class HTMLImageElement(HTMLElementProps, total=False, closed=False):
     width: str
 
 
-class HTMLInputElement(HTMLElementProps, total=False, closed=False):
+class HTMLInputElement(HTMLElementProps, total=False):
     accept: str
     alt: str
     auto_complete: str
@@ -350,19 +351,19 @@ class HTMLInputElement(HTMLElementProps, total=False, closed=False):
     width: str
 
 
-class HTMLListItemElement(HTMLElementProps, total=False, closed=False):
+class HTMLListItemElement(HTMLElementProps, total=False):
     value: str
 
 
-class HTMLLabelElement(HTMLElementProps, total=False, closed=False):
+class HTMLLabelElement(HTMLElementProps, total=False):
     html_for: str
 
 
-class HTMLLegendElement(HTMLElementProps, total=False, closed=False):
+class HTMLLegendElement(HTMLElementProps, total=False):
     align: str
 
 
-class HTMLLinkElement(HTMLElementProps, total=False, closed=False):
+class HTMLLinkElement(HTMLElementProps, total=False):
     html_as: str
     cross_origin: str
     disabled: str
@@ -375,28 +376,28 @@ class HTMLLinkElement(HTMLElementProps, total=False, closed=False):
     type: str
 
 
-class HTMLMapElement(HTMLElementProps, total=False, closed=False):
+class HTMLMapElement(HTMLElementProps, total=False):
     name: str
 
 
-class HTMLDocumentMetaElement(HTMLElementProps, total=False, closed=False):
+class HTMLDocumentMetaElement(HTMLElementProps, total=False):
     name: str
     content: str
 
 
-class HTMLPragmaMetaElement(HTMLElementProps, total=False, closed=False):
+class HTMLPragmaMetaElement(HTMLElementProps, total=False):
     http_equiv: str
 
 
-class HTMLCharsetMetaElement(HTMLElementProps, total=False, closed=False):
+class HTMLCharsetMetaElement(HTMLElementProps, total=False):
     charset: str
 
 
-class HTMLUserMetaElement(HTMLElementProps, total=False, closed=False):
+class HTMLUserMetaElement(HTMLElementProps, total=False):
     itemprop: str
 
 
-class HTMLMeterElement(HTMLElementProps, total=False, closed=False):
+class HTMLMeterElement(HTMLElementProps, total=False):
     form: str
     high: str
     low: str
@@ -406,12 +407,12 @@ class HTMLMeterElement(HTMLElementProps, total=False, closed=False):
     value: str
 
 
-class HTMLModElement(HTMLElementProps, total=False, closed=False):
+class HTMLModElement(HTMLElementProps, total=False):
     cite: str
     datetime: str
 
 
-class HTMLObjectElement(HTMLElementProps, total=False, closed=False):
+class HTMLObjectElement(HTMLElementProps, total=False):
     data: str
     form: str
     height: str
@@ -421,56 +422,56 @@ class HTMLObjectElement(HTMLElementProps, total=False, closed=False):
     width: str
 
 
-class HTMLOrderedListElement(HTMLElementProps, total=False, closed=False):
+class HTMLOrderedListElement(HTMLElementProps, total=False):
     reversed: str
     start: str
 
 
-class HTMLOptGroupElement(HTMLElementProps, total=False, closed=False):
+class HTMLOptGroupElement(HTMLElementProps, total=False):
     disabled: str
     label: str
 
 
-class HTMLOptionElement(HTMLElementProps, total=False, closed=False):
+class HTMLOptionElement(HTMLElementProps, total=False):
     disabled: str
     label: str
     selected: str
     value: str
 
 
-class HTMLOutputElement(HTMLElementProps, total=False, closed=False):
+class HTMLOutputElement(HTMLElementProps, total=False):
     html_for: str  # 'for' is a reserved keyword in Python, so using 'html_for'
     form: str
     name: str
 
 
-class HTMLParagraphElement(HTMLElementProps, total=False, closed=False):
+class HTMLParagraphElement(HTMLElementProps, total=False):
     pass  # No additional attributes
 
 
-class HTMLParamElement(HTMLElementProps, total=False, closed=False):
+class HTMLParamElement(HTMLElementProps, total=False):
     name: str
     value: str
 
 
-class HTMLPictureElement(HTMLElementProps, total=False, closed=False):
+class HTMLPictureElement(HTMLElementProps, total=False):
     pass  # No additional attributes
 
 
-class HTMLPreElement(HTMLElementProps, total=False, closed=False):
+class HTMLPreElement(HTMLElementProps, total=False):
     pass  # No additional attributes
 
 
-class HTMLProgressElement(HTMLElementProps, total=False, closed=False):
+class HTMLProgressElement(HTMLElementProps, total=False):
     max: str
     value: str
 
 
-class HTMLQuoteElement(HTMLElementProps, total=False, closed=False):
+class HTMLQuoteElement(HTMLElementProps, total=False):
     cite: str
 
 
-class HTMLScriptElement(HTMLElementProps, total=False, closed=False):
+class HTMLScriptElement(HTMLElementProps, total=False):
     async_: bool  # 'async' is a reserved keyword in Python, so using 'async_'
     cross_origin: str
     defer: bool
@@ -481,7 +482,7 @@ class HTMLScriptElement(HTMLElementProps, total=False, closed=False):
     type: str
 
 
-class HTMLSelectElement(HTMLElementProps, total=False, closed=False):
+class HTMLSelectElement(HTMLElementProps, total=False):
     auto_complete: str
     auto_focus: str
     disabled: str
@@ -492,11 +493,11 @@ class HTMLSelectElement(HTMLElementProps, total=False, closed=False):
     size: str
 
 
-class HTMLSlotElement(HTMLElementProps, total=False, closed=False):
+class HTMLSlotElement(HTMLElementProps, total=False):
     name: str
 
 
-class HTMLSourceElement(HTMLElementProps, total=False, closed=False):
+class HTMLSourceElement(HTMLElementProps, total=False):
     media: str
     sizes: str
     src: str
@@ -504,21 +505,21 @@ class HTMLSourceElement(HTMLElementProps, total=False, closed=False):
     type: str
 
 
-class HTMLSpanElement(HTMLElementProps, total=False, closed=False):
+class HTMLSpanElement(HTMLElementProps, total=False):
     pass  # No additional attributes
 
 
-class HTMLStyleElement(HTMLElementProps, total=False, closed=False):
+class HTMLStyleElement(HTMLElementProps, total=False):
     media: str
     nonce: str
     scoped: str
 
 
-class HTMLTableCaptionElement(HTMLElementProps, total=False, closed=False):
+class HTMLTableCaptionElement(HTMLElementProps, total=False):
     pass  # No additional attributes
 
 
-class HTMLTableCellElement(HTMLElementProps, total=False, closed=False):
+class HTMLTableCellElement(HTMLElementProps, total=False):
     abbr: str
     colspan: str
     headers: str
@@ -526,7 +527,7 @@ class HTMLTableCellElement(HTMLElementProps, total=False, closed=False):
     scope: str
 
 
-class HTMLTableColElement(HTMLElementProps, total=False, closed=False):
+class HTMLTableColElement(HTMLElementProps, total=False):
     span: str
 
 
@@ -534,7 +535,7 @@ class HTMLTableDataCellElement(HTMLTableCellElement):
     pass  # Inherits attributes from HTMLTableCellElement
 
 
-class HTMLTableElement(HTMLElementProps, total=False, closed=False):
+class HTMLTableElement(HTMLElementProps, total=False):
     border: str
     cellpadding: str
     cellspacing: str
@@ -548,7 +549,7 @@ class HTMLTableHeaderCellElement(HTMLTableCellElement):
     pass  # Inherits attributes from HTMLTableCellElement
 
 
-class HTMLTableRowElement(HTMLElementProps, total=False, closed=False):
+class HTMLTableRowElement(HTMLElementProps, total=False):
     align: str
     bgcolor: str
     ch: str
@@ -556,18 +557,18 @@ class HTMLTableRowElement(HTMLElementProps, total=False, closed=False):
     v_align: str
 
 
-class HTMLTableSectionElement(HTMLElementProps, total=False, closed=False):
+class HTMLTableSectionElement(HTMLElementProps, total=False):
     align: str
     ch: str
     choff: str
     v_align: str
 
 
-class HTMLTemplateElement(HTMLElementProps, total=False, closed=False):
+class HTMLTemplateElement(HTMLElementProps, total=False):
     pass  # No additional attributes
 
 
-class HTMLTextAreaElement(HTMLElementProps, total=False, closed=False):
+class HTMLTextAreaElement(HTMLElementProps, total=False):
     auto_complete: str
     auto_focus: str
     cols: str
@@ -584,15 +585,15 @@ class HTMLTextAreaElement(HTMLElementProps, total=False, closed=False):
     wrap: str
 
 
-class HTMLTimeElement(HTMLElementProps, total=False, closed=False):
+class HTMLTimeElement(HTMLElementProps, total=False):
     datetime: str
 
 
-class HTMLTitleElement(HTMLElementProps, total=False, closed=False):
+class HTMLTitleElement(HTMLElementProps, total=False):
     pass  # No additional attributes
 
 
-class HTMLTrackElement(HTMLElementProps, total=False, closed=False):
+class HTMLTrackElement(HTMLElementProps, total=False):
     default: str
     kind: str
     label: str
@@ -600,11 +601,11 @@ class HTMLTrackElement(HTMLElementProps, total=False, closed=False):
     srclang: str
 
 
-class HTMLUnorderedListElement(HTMLElementProps, total=False, closed=False):
+class HTMLUnorderedListElement(HTMLElementProps, total=False):
     pass  # No additional attributes
 
 
-class HTMLVideoElement(HTMLElementProps, total=False, closed=False):
+class HTMLVideoElement(HTMLElementProps, total=False):
     auto_play: str
     controls: str
     cross_origin: str