diff --git a/demo/src/html/index.html.template b/demo/src/html/index.html.template
index 2d3b847e7e..021a9dc55f 100644
--- a/demo/src/html/index.html.template
+++ b/demo/src/html/index.html.template
@@ -2,9 +2,7 @@
 <html>
   <head>
     <title>Home Assistant Demo</title>
-    <meta charset="utf-8" />
-    <link rel="manifest" href="/manifest.json" crossorigin="use-credentials" />
-    <link rel="icon" href="/static/icons/favicon.ico" />
+    <%= renderTemplate("../../../src/html/_header.html.template") %>
     <link rel="mask-icon" href="/static/icons/mask-icon.svg" color="#03a9f4" />
     <link
       rel="apple-touch-icon"
diff --git a/src/html/_header.html.template b/src/html/_header.html.template
index 37d483dd76..9ba28a1421 100644
--- a/src/html/_header.html.template
+++ b/src/html/_header.html.template
@@ -6,4 +6,3 @@
     <link rel="modulepreload" href="<%= entry %>" crossorigin="use-credentials" />
   <% } %>
 <% } %>
-<%= renderTemplate("_style_base.html.template") %>
diff --git a/src/html/authorize.html.template b/src/html/authorize.html.template
index 1a30de1a72..5f9c58f244 100644
--- a/src/html/authorize.html.template
+++ b/src/html/authorize.html.template
@@ -3,6 +3,7 @@
   <head>
     <title>Home Assistant</title>
     <%= renderTemplate("_header.html.template") %>
+    <%= renderTemplate("_style_base.html.template") %>
     <style>
       .content {
         padding: 20px 16px;
diff --git a/src/html/index.html.template b/src/html/index.html.template
index 05c7f06e56..c8aae499b6 100644
--- a/src/html/index.html.template
+++ b/src/html/index.html.template
@@ -34,6 +34,7 @@
     <meta name="referrer" content="same-origin" />
     <meta name="theme-color" content="{{ theme_color }}" />
     <meta name="color-scheme" content="dark light" />
+    <%= renderTemplate("_style_base.html.template") %>
     <style>
       html {
         background-color: var(--primary-background-color, #fafafa);
diff --git a/src/html/onboarding.html.template b/src/html/onboarding.html.template
index 2812a8bad8..7e6f828972 100644
--- a/src/html/onboarding.html.template
+++ b/src/html/onboarding.html.template
@@ -3,6 +3,7 @@
   <head>
     <title>Home Assistant</title>
     <%= renderTemplate("_header.html.template") %>
+    <%= renderTemplate("_style_base.html.template") %>
     <style>
       html {
         color: var(--primary-text-color, #212121);
