2 files changed, 8 insertions, 1 deletions
diff --git a/components/script/dom/htmlhrelement.rs b/components/script/dom/htmlhrelement.rs
index 93fdebbc954..bea12efbfea 100644
--- a/components/script/dom/htmlhrelement.rs
+++ b/components/script/dom/htmlhrelement.rs
@@ -37,6 +37,12 @@ impl HTMLHRElement {
 }
 
 impl HTMLHRElementMethods for HTMLHRElement {
+    // https://html.spec.whatwg.org/multipage/#dom-hr-align
+    make_getter!(Align, "align");
+
+    // https://html.spec.whatwg.org/multipage/#dom-hr-align
+    make_atomic_setter!(SetAlign, "align");
+
     // https://html.spec.whatwg.org/multipage/#dom-hr-color
     make_getter!(Color, "color");
 
@@ -86,6 +92,7 @@ impl VirtualMethods for HTMLHRElement {
 
     fn parse_plain_attribute(&self, name: &Atom, value: DOMString) -> AttrValue {
         match name {
+            &atom!("align") => AttrValue::from_dimension(value),
             &atom!("color") => AttrValue::from_legacy_color(value),
             &atom!("width") => AttrValue::from_dimension(value),
             _ => self.super_type().unwrap().parse_plain_attribute(name, value),
diff --git a/components/script/dom/webidls/HTMLHRElement.webidl b/components/script/dom/webidls/HTMLHRElement.webidl
index f203527b2bf..e3ba6113748 100644
--- a/components/script/dom/webidls/HTMLHRElement.webidl
+++ b/components/script/dom/webidls/HTMLHRElement.webidl
@@ -10,7 +10,7 @@ interface HTMLHRElement : HTMLElement {
 
 // https://html.spec.whatwg.org/multipage/#HTMLHRElement-partial
 partial interface HTMLHRElement {
-  //         attribute DOMString align;
+  attribute DOMString align;
   attribute DOMString color;
   //         attribute boolean noShade;
   //         attribute DOMString size;