diff --git a/WebSharper.UI.Tests/Main.fs b/WebSharper.UI.Tests/Main.fs
index b6e65fb..d39d294 100644
--- a/WebSharper.UI.Tests/Main.fs
+++ b/WebSharper.UI.Tests/Main.fs
@@ -693,6 +693,9 @@ module Main =
             p [] [text (" You typed: " + rv.V.y.z)]
             V(ul [] (rv.V.y.z |> Seq.map (fun c -> li [] [text (string c)]))).V
             p [Attr.ClassPred "is-green" (rv.V.y.z = "green")] [text "this should be bordered with green iff you typed \"green\"."]
+
+            dialog [attr.id "my-popover"; attr.popover "manual"; attr.style "background-color: darkslategray; color:white;"] [text "Popover attempt"]
+            button [attr.popovertarget "my-popover"; attr.popovertargetaction "toggle"] [text "Open/Close dialog"]
             rd.V
         ]
         |> Doc.RunAppend JS.Document.Body
diff --git a/WebSharper.UI/HTML.Client.fs b/WebSharper.UI/HTML.Client.fs
index 49639e1..cf3cf75 100644
--- a/WebSharper.UI/HTML.Client.fs
+++ b/WebSharper.UI/HTML.Client.fs
@@ -1128,6 +1128,33 @@ module HtmlExtensions =
         /// Create an animated HTML attribute "poster" whose value is computed from the given reactive view.
         [<JavaScript; Inline>]
         static member posterAnim view convert trans = Client.Attr.Animated "poster" trans view convert
+        /// Create an HTML attribute "popover" with the given reactive value.
+        [<JavaScript; Inline>]
+        static member popoverDyn view = Client.Attr.Dynamic "popover" view
+        /// `popover v p` sets an HTML attribute "popover" with reactive value v when p is true, and unsets it when p is false.
+        [<JavaScript; Inline>]
+        static member popoverDynPred view pred = Client.Attr.DynamicPred "popover" pred view
+        /// Create an animated HTML attribute "popover" whose value is computed from the given reactive view.
+        [<JavaScript; Inline>]
+        static member popoverAnim view convert trans = Client.Attr.Animated "popover" trans view convert
+        /// Create an HTML attribute "popovertarget" with the given reactive value.
+        [<JavaScript; Inline>]
+        static member popovertargetDyn view = Client.Attr.Dynamic "popovertarget" view
+        /// `popovertarget v p` sets an HTML attribute "popovertarget" with reactive value v when p is true, and unsets it when p is false.
+        [<JavaScript; Inline>]
+        static member popovertargetDynPred view pred = Client.Attr.DynamicPred "popovertarget" pred view
+        /// Create an animated HTML attribute "popovertarget" whose value is computed from the given reactive view.
+        [<JavaScript; Inline>]
+        static member popovertargetAnim view convert trans = Client.Attr.Animated "popovertarget" trans view convert
+        /// Create an HTML attribute "popovertargetaction" with the given reactive value.
+        [<JavaScript; Inline>]
+        static member popovertargetactionDyn view = Client.Attr.Dynamic "popovertargetaction" view
+        /// `popovertargetaction v p` sets an HTML attribute "popovertargetaction" with reactive value v when p is true, and unsets it when p is false.
+        [<JavaScript; Inline>]
+        static member popovertargetactionDynPred view pred = Client.Attr.DynamicPred "popovertargetaction" pred view
+        /// Create an animated HTML attribute "popovertargetaction" whose value is computed from the given reactive view.
+        [<JavaScript; Inline>]
+        static member popovertargetactionAnim view convert trans = Client.Attr.Animated "popovertargetaction" trans view convert
         /// Create an HTML attribute "preload" with the given reactive value.
         [<JavaScript; Inline>]
         static member preloadDyn view = Client.Attr.Dynamic "preload" view
diff --git a/WebSharper.UI/HTML.fs b/WebSharper.UI/HTML.fs
index 886c526..fc2d503 100644
--- a/WebSharper.UI/HTML.fs
+++ b/WebSharper.UI/HTML.fs
@@ -157,6 +157,9 @@ module Html =
         /// Create an HTML element <div> with attributes and children.
         [<JavaScript; Inline>]
         let div ats ch = Doc.Element "div" ats ch
+        /// Create an HTML element <dialog> with attributes and children.
+        [<JavaScript; Inline>]
+        let dialog ats ch = Doc.Element "dialog" ats ch
         /// Create an HTML element <dl> with attributes and children.
         [<JavaScript; Inline>]
         let dl ats ch = Doc.Element "dl" ats ch
@@ -523,6 +526,9 @@ module Html =
     /// Create an HTML element <div> with attributes and children.
     [<JavaScript; Inline>]
     let div ats ch = Elt.div ats ch :> Doc
+    /// Create an HTML element <dialog> with attributes and children.
+    [<JavaScript; Inline>]
+    let dialog ats ch = Elt.dialog ats ch :> Doc
     /// Create an HTML element <dl> with attributes and children.
     [<JavaScript; Inline>]
     let dl ats ch = Elt.dl ats ch :> Doc
@@ -1761,6 +1767,18 @@ module Html =
         /// The value can be reactive using `view.V`.
         [<JavaScript; Inline; Macro(typeof<Macros.AttrCreate>, "placeholder")>]
         static member placeholder value = Attr.Create "placeholder" value
+        /// Create an HTML attribute "popover" with the given value, which must be either "auto" or "manual".
+        /// The value can be reactive using `view.V`.
+        [<JavaScript; Inline; Macro(typeof<Macros.AttrCreate>, "popover")>]
+        static member popover value = Attr.Create "popover" value
+        /// Create an HTML attribute "popovertarget" with the given value, which must be an HTML id.
+        /// The value can be reactive using `view.V`.
+        [<JavaScript; Inline; Macro(typeof<Macros.AttrCreate>, "popovertarget")>]
+        static member popovertarget value = Attr.Create "popovertarget" value
+        /// Create an HTML attribute "popovertargetaction" with the given value, which must be either "show", "hide" or "toggle".
+        /// The value can be reactive using `view.V`.
+        [<JavaScript; Inline; Macro(typeof<Macros.AttrCreate>, "popovertargetaction")>]
+        static member popovertargetaction value = Attr.Create "popovertargetaction" value
         /// Create an HTML attribute "poster" with the given value.
         /// The value can be reactive using `view.V`.
         [<JavaScript; Inline; Macro(typeof<Macros.AttrCreate>, "poster")>]