diff --git a/dom.go b/dom.go
index f84d139..3eeb055 100644
--- a/dom.go
+++ b/dom.go
@@ -290,6 +290,8 @@ func wrapHTMLElement(o *js.Object) HTMLElement {
 		return &HTMLDataElement{BasicHTMLElement: el}
 	case js.Global.Get("HTMLDataListElement"):
 		return &HTMLDataListElement{BasicHTMLElement: el}
+	case js.Global.Get("HTMLDialogElement"):
+		return &HTMLDialogElement{BasicHTMLElement: el}
 	case js.Global.Get("HTMLDirectoryElement"):
 		return &HTMLDirectoryElement{BasicHTMLElement: el}
 	case js.Global.Get("HTMLDivElement"):
@@ -358,6 +360,8 @@ func wrapHTMLElement(o *js.Object) HTMLElement {
 		return &HTMLParagraphElement{BasicHTMLElement: el}
 	case js.Global.Get("HTMLParamElement"):
 		return &HTMLParamElement{BasicHTMLElement: el}
+	case js.Global.Get("HTMLPictureElement"):
+		return &HTMLPictureElement{BasicHTMLElement: el}
 	case js.Global.Get("HTMLPreElement"):
 		return &HTMLPreElement{BasicHTMLElement: el}
 	case js.Global.Get("HTMLProgressElement"):
@@ -368,6 +372,8 @@ func wrapHTMLElement(o *js.Object) HTMLElement {
 		return &HTMLScriptElement{BasicHTMLElement: el}
 	case js.Global.Get("HTMLSelectElement"):
 		return &HTMLSelectElement{BasicHTMLElement: el}
+	case js.Global.Get("HTMLSlotElement"):
+		return &HTMLSlotElement{BasicHTMLElement: el}
 	case js.Global.Get("HTMLSourceElement"):
 		return &HTMLSourceElement{BasicHTMLElement: el}
 	case js.Global.Get("HTMLSpanElement"):
@@ -390,6 +396,8 @@ func wrapHTMLElement(o *js.Object) HTMLElement {
 		return &HTMLTableRowElement{BasicHTMLElement: el}
 	case js.Global.Get("HTMLTableSectionElement"):
 		return &HTMLTableSectionElement{BasicHTMLElement: el}
+	case js.Global.Get("HTMLTemplateElement"):
+		return &HTMLTemplateElement{BasicHTMLElement: el}
 	case js.Global.Get("HTMLTextAreaElement"):
 		return &HTMLTextAreaElement{BasicHTMLElement: el}
 	case js.Global.Get("HTMLTimeElement"):
@@ -1516,6 +1524,7 @@ type Element interface {
 
 	Attributes() map[string]string
 	Class() *TokenList
+	Closest(string) Element
 	ID() string
 	SetID(string)
 	TagName() string
@@ -1527,6 +1536,7 @@ type Element interface {
 	GetElementsByTagNameNS(ns string, name string) []Element
 	HasAttribute(string) bool
 	HasAttributeNS(ns string, name string) bool
+	Matches(string) bool
 	QuerySelector(string) Element
 	QuerySelectorAll(string) []Element
 	RemoveAttribute(string)
@@ -1719,6 +1729,10 @@ func (e *BasicElement) SetClass(s string) {
 	e.Set("className", s)
 }
 
+func (e *BasicElement) Closest(s string) Element {
+	return wrapElement(e.Call("closest", s))
+}
+
 func (e *BasicElement) ID() string {
 	return e.Get("id").String()
 }
@@ -1759,6 +1773,10 @@ func (e *BasicElement) HasAttributeNS(ns string, name string) bool {
 	return e.Call("hasAttributeNS", ns, name).Bool()
 }
 
+func (e *BasicElement) Matches(s string) bool {
+	return e.Call("matches", s).Bool()
+}
+
 func (e *BasicElement) QuerySelector(s string) Element {
 	return wrapElement(e.Call("querySelector", s))
 }
@@ -2294,6 +2312,24 @@ func (e *HTMLDataListElement) Options() []*HTMLOptionElement {
 	return getOptions(e.Object, "options")
 }
 
+type HTMLDialogElement struct {
+	*BasicHTMLElement
+	Open        bool   `js:"open"`
+	ReturnValue string `js:"returnValue"`
+}
+
+func (e *HTMLDialogElement) Close(returnValue string) {
+	e.Call("close", returnValue)
+}
+
+func (e *HTMLDialogElement) Show() {
+	e.Call("show")
+}
+
+func (e *HTMLDialogElement) ShowModal() {
+	e.Call("showModal")
+}
+
 type HTMLDirectoryElement struct{ *BasicHTMLElement }
 type HTMLDivElement struct{ *BasicHTMLElement }
 
@@ -2766,6 +2802,7 @@ type HTMLParamElement struct {
 	Value string `js:"value"`
 }
 
+type HTMLPictureElement struct{ *BasicHTMLElement }
 type HTMLPreElement struct{ *BasicHTMLElement }
 
 type HTMLProgressElement struct {
@@ -2859,6 +2896,15 @@ func (e *HTMLSelectElement) SetCustomValidity(s string) {
 	e.Call("setCustomValidity", s)
 }
 
+type HTMLSlotElement struct {
+	*BasicHTMLElement
+	Name string `js:"name"`
+}
+
+func (e *HTMLSlotElement) AssignedNodes() []Element {
+	return nodeListToElements(e.Call("assignedNodes"))
+}
+
 type HTMLSourceElement struct {
 	*BasicHTMLElement
 	Media string `js:"media"`
@@ -2936,6 +2982,12 @@ func (e *HTMLTableSectionElement) InsertRow(index int) *HTMLTableRowElement {
 	return wrapHTMLElement(e.Call("insertRow", index)).(*HTMLTableRowElement)
 }
 
+type HTMLTemplateElement struct{ *BasicHTMLElement }
+
+func (e *HTMLTemplateElement) Content() DocumentFragment {
+	return wrapDocumentFragment(e.Get("content"))
+}
+
 type HTMLTextAreaElement struct {
 	*BasicHTMLElement
 	Autocomplete       string `js:"autocomplete"`