diff -r 3d4e9c994f10 -r a86126ab1dd4 wp/wp-includes/blocks/spacer/block.json
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/wp/wp-includes/blocks/spacer/block.json	Tue Dec 15 13:49:49 2020 +0100
@@ -0,0 +1,13 @@
+{
+	"name": "core/spacer",
+	"category": "design",
+	"attributes": {
+		"height": {
+			"type": "number",
+			"default": 100
+		}
+	},
+	"supports": {
+		"anchor": true
+	}
+}