diff --git a/overrides/main.html b/overrides/main.html
new file mode 100644
index 000000000..954af3bc6
--- /dev/null
+++ b/overrides/main.html
@@ -0,0 +1,15 @@
+{% extends "base.html" %}
+
+{% block announce %}
+{% if config.theme.language == 'zh' %}
+    {% set announcements = "纸质书将于近期发布，敬请关注！" %}
+{% elif config.theme.language == 'en' %}
+    {% set announcements = "The paper book (Chinese edition) will be published soon. Stay tuned!" %}
+{% endif %}
+<svg xmlns="http://www.w3.org/2000/svg"
+    viewBox="0 0 512 512"><!--!Font Awesome Free 6.5.1 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free Copyright 2024 Fonticons, Inc.-->
+    <path
+        d="M480 32c0-12.9-7.8-24.6-19.8-29.6s-25.7-2.2-34.9 6.9L381.7 53c-48 48-113.1 75-181 75H192 160 64c-35.3 0-64 28.7-64 64v96c0 35.3 28.7 64 64 64l0 128c0 17.7 14.3 32 32 32h64c17.7 0 32-14.3 32-32V352l8.7 0c67.9 0 133 27 181 75l43.6 43.6c9.2 9.2 22.9 11.9 34.9 6.9s19.8-16.6 19.8-29.6V300.4c18.6-8.8 32-32.5 32-60.4s-13.4-51.6-32-60.4V32zm-64 76.7V240 371.3C357.2 317.8 280.5 288 200.7 288H192V192h8.7c79.8 0 156.5-29.8 215.3-83.3z" />
+</svg>
+<span>{{ announcements }}</span>
+{% endblock %}
\ No newline at end of file
diff --git a/overrides/stylesheets/extra.css b/overrides/stylesheets/extra.css
index 358a6a3e2..44e371856 100644
--- a/overrides/stylesheets/extra.css
+++ b/overrides/stylesheets/extra.css
@@ -207,6 +207,19 @@ body {
   width: 1.25em;
 }
 
+/* header banner */
+.md-banner {
+  background-color: var(--md-code-bg-color);
+  color: var(--md-default-fg-color);
+  font-size: 0.75rem;
+}
+
+.md-banner svg {
+  margin-right: 0.3rem;
+  height: 0.63rem;
+  fill: var(--md-default-fg-color);
+}
+
 .pythontutor-iframe {
   width: 125%;
   height: 125%;