1 files changed, 6 insertions, 0 deletions
diff --git a/Lib/http/server.py b/Lib/http/server.py
index 2d01064..a6f7aec 100644
--- a/Lib/http/server.py
+++ b/Lib/http/server.py
@@ -114,6 +114,11 @@ DEFAULT_ERROR_MESSAGE = """\
 <html lang="en">
     <head>
         <meta charset="utf-8">
+        <style type="text/css">
+            :root {
+                color-scheme: light dark;
+            }
+        </style>
         <title>Error response</title>
     </head>
     <body>
@@ -804,6 +809,7 @@ class SimpleHTTPRequestHandler(BaseHTTPRequestHandler):
         r.append('<html lang="en">')
         r.append('<head>')
         r.append(f'<meta charset="{enc}">')
+        r.append('<style type="text/css">\n:root {\ncolor-scheme: light dark;\n}\n</style>')
         r.append(f'<title>{title}</title>\n</head>')
         r.append(f'<body>\n<h1>{title}</h1>')
         r.append('<hr>\n<ul>')