From 7646db7d6f2fde47bbf011c951c0bfbb531aba21 Mon Sep 17 00:00:00 2001
From: Kristiyan Kostadinov <crisbeto@abv.bg>
Date: Tue, 7 Oct 2025 20:00:47 -0400
Subject: [PATCH] fix(material/snack-bar): add max height for snack bar

Adds a max height for the snack bar in case users pass huge strings into it.

Fixes #31996.
---
 src/material/snack-bar/snack-bar-container.scss | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/material/snack-bar/snack-bar-container.scss b/src/material/snack-bar/snack-bar-container.scss
index f2ffe71c8a0b..e66e93884e24 100644
--- a/src/material/snack-bar/snack-bar-container.scss
+++ b/src/material/snack-bar/snack-bar-container.scss
@@ -30,13 +30,15 @@ $fallbacks: m3-snack-bar.get-tokens();
 }
 
 .mat-mdc-snack-bar-container {
-  display: flex;
-  align-items: center;
-  justify-content: center;
   box-sizing: border-box;
   -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
   margin: 8px;
 
+  // Note: ideally we would put this on the label,
+  // but it ends up breaking somewhat breaking internally.
+  max-height: 50vh;
+  overflow: auto;
+
   .mat-mdc-snack-bar-handset & {
     width: 100vw;
   }