From cc6f085d44e91b4e0196a47735da7a2cdac2b7b4 Mon Sep 17 00:00:00 2001
From: Sean Campbell <sean.campbell13@gmail.com>
Date: Thu, 23 Jul 2020 14:45:40 -0400
Subject: [PATCH] Fixed AvatarGroup Box Sizing

Closes #21700
---
 packages/material-ui-lab/src/AvatarGroup/AvatarGroup.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/packages/material-ui-lab/src/AvatarGroup/AvatarGroup.js b/packages/material-ui-lab/src/AvatarGroup/AvatarGroup.js
index 89ef01ac9ce7ba..3716f65dfb366b 100644
--- a/packages/material-ui-lab/src/AvatarGroup/AvatarGroup.js
+++ b/packages/material-ui-lab/src/AvatarGroup/AvatarGroup.js
@@ -20,6 +20,7 @@ export const styles = (theme) => ({
   /* Styles applied to the avatar elements. */
   avatar: {
     border: `2px solid ${theme.palette.background.default}`,
+    boxSizing: 'content-box',
     marginLeft: -8,
     '&:last-child': {
       marginLeft: 0,