From 009fb06efb30a72ec52ad89785715ba5e2d505b0 Mon Sep 17 00:00:00 2001
From: Aaron Robertshaw <60436221+aaronrobertshaw@users.noreply.github.com>
Date: Mon, 9 Aug 2021 15:34:08 +1000
Subject: [PATCH] Add baseline border styles for cover block

These new styles have zero specificity and are easily overridden by theme or global styles. They however ensure there is some value set such that a user is more likely to be given immediate visual feedback when editing individual border properties.
---
 packages/block-library/src/cover/style.scss | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/packages/block-library/src/cover/style.scss b/packages/block-library/src/cover/style.scss
index 6aed4577ccb9ef..bd2b1e9161c339 100644
--- a/packages/block-library/src/cover/style.scss
+++ b/packages/block-library/src/cover/style.scss
@@ -286,3 +286,10 @@ section.wp-block-cover-image > h2,
 	padding: 0.44em;
 	text-align: center;
 }
+
+// The following sets baseline border styles with zero specificity such that
+// when a user begins to alter cover block borders via the block support UI they
+// see immediately visual changes.
+html :where(.wp-block-cover) {
+	border: 0 solid currentColor;
+}