From 52c05a442654d49f497e9bcc9f482a878be5d808 Mon Sep 17 00:00:00 2001
From: Wendelin <12148533+wendevlin@users.noreply.github.com>
Date: Thu, 7 Aug 2025 09:50:05 +0200
Subject: [PATCH] Fix plain button in legacy browsers (#26426)

---
 src/components/ha-button.ts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/components/ha-button.ts b/src/components/ha-button.ts
index b14d3db48f..1f32aec63e 100644
--- a/src/components/ha-button.ts
+++ b/src/components/ha-button.ts
@@ -154,6 +154,7 @@ export class HaButton extends Button {
 
         :host([appearance~="plain"]) .button {
           color: var(--wa-color-on-normal);
+          background-color: transparent;
         }
         :host([appearance~="plain"]) .button.disabled {
           background-color: transparent;