diff --git a/src/ecmascript/quickjs/element.c b/src/ecmascript/quickjs/element.c
index 7099c1f4..27d696e0 100644
--- a/src/ecmascript/quickjs/element.c
+++ b/src/ecmascript/quickjs/element.c
@@ -815,6 +815,47 @@ js_element_get_property_nextSibling(JSContext *ctx, JSValueConst this_val)
 	return getElement(ctx, node);
 }
 
+static JSValue
+js_element_get_property_offsetHeight(JSContext *ctx, JSValueConst this_val)
+{
+#ifdef ECMASCRIPT_DEBUG
+	fprintf(stderr, "%s:%s\n", __FILE__, __FUNCTION__);
+#endif
+	dom_node *el = (dom_node *)(js_getopaque(this_val, js_element_class_id));
+
+	if (!el) {
+		return JS_NULL;
+	}
+	struct ecmascript_interpreter *interpreter = (struct ecmascript_interpreter *)JS_GetContextOpaque(ctx);
+	struct view_state *vs = interpreter->vs;
+	struct document_view *doc_view = vs->doc_view;
+	struct document *document = doc_view->document;
+	struct session *ses;
+
+	if (!document) {
+		return JS_NewInt32(ctx, 0);
+	}
+	int offset = find_offset(document->element_map_rev, el);
+
+	if (offset <= 0) {
+		return JS_NewInt32(ctx, 0);
+	}
+	struct node_rect *rect = get_element_rect(document, offset);
+
+	if (!rect) {
+		return JS_NewInt32(ctx, 0);
+	}
+	ses = doc_view->session;
+
+	if (!ses) {
+		return JS_NewInt32(ctx, 0);
+	}
+	int dy = int_max(0, (rect->y1 + 1 - rect->y0) * ses->tab->term->cell_height);
+
+	return JS_NewInt32(ctx, dy);
+}
+
+
 static JSValue
 js_element_get_property_offsetLeft(JSContext *ctx, JSValueConst this_val)
 {
@@ -948,6 +989,47 @@ js_element_get_property_offsetTop(JSContext *ctx, JSValueConst this_val)
 	return JS_NewInt32(ctx, dy);
 }
 
+static JSValue
+js_element_get_property_offsetWidth(JSContext *ctx, JSValueConst this_val)
+{
+#ifdef ECMASCRIPT_DEBUG
+	fprintf(stderr, "%s:%s\n", __FILE__, __FUNCTION__);
+#endif
+	dom_node *el = (dom_node *)(js_getopaque(this_val, js_element_class_id));
+
+	if (!el) {
+		return JS_NULL;
+	}
+	struct ecmascript_interpreter *interpreter = (struct ecmascript_interpreter *)JS_GetContextOpaque(ctx);
+	struct view_state *vs = interpreter->vs;
+	struct document_view *doc_view = vs->doc_view;
+	struct document *document = doc_view->document;
+	struct session *ses;
+
+	if (!document) {
+		return JS_NewInt32(ctx, 0);
+	}
+	int offset = find_offset(document->element_map_rev, el);
+
+	if (offset <= 0) {
+		return JS_NewInt32(ctx, 0);
+	}
+	struct node_rect *rect = get_element_rect(document, offset);
+
+	if (!rect) {
+		return JS_NewInt32(ctx, 0);
+	}
+	ses = doc_view->session;
+
+	if (!ses) {
+		return JS_NewInt32(ctx, 0);
+	}
+	int dx = int_max(0, (rect->x1 + 1 - rect->x0) * ses->tab->term->cell_width);
+
+	return JS_NewInt32(ctx, dx);
+}
+
+
 static JSValue
 js_element_get_property_ownerDocument(JSContext *ctx, JSValueConst this_val)
 {
@@ -3069,9 +3151,11 @@ static const JSCFunctionListEntry js_element_proto_funcs[] = {
 	JS_CGETSET_DEF("nodeName",	js_element_get_property_nodeName, NULL),
 	JS_CGETSET_DEF("nodeType",	js_element_get_property_nodeType, NULL),
 	JS_CGETSET_DEF("nodeValue",	js_element_get_property_nodeValue, NULL),
+	JS_CGETSET_DEF("offsetHeight",	js_element_get_property_offsetHeight, NULL),
 	JS_CGETSET_DEF("offsetLeft",	js_element_get_property_offsetLeft, NULL),
 	JS_CGETSET_DEF("offsetParent",	js_element_get_property_offsetParent, NULL),
 	JS_CGETSET_DEF("offsetTop",	js_element_get_property_offsetTop, NULL),
+	JS_CGETSET_DEF("offsetWidth",	js_element_get_property_offsetWidth, NULL),
 	JS_CGETSET_DEF("outerHTML",	js_element_get_property_outerHtml, NULL),
 	JS_CGETSET_DEF("ownerDocument",	js_element_get_property_ownerDocument, NULL),
 	JS_CGETSET_DEF("parentElement",	js_element_get_property_parentElement, NULL),