diff --git a/book.toml b/book.toml
index f16b354..55f7e58 100644
--- a/book.toml
+++ b/book.toml
@@ -3,3 +3,12 @@ title = "Winnie-the-Pooh"
 authors = ["A. A. Milne"]
 description = "A father tells stories to his son about the son’s stuffed animals come to life."
 language = "en-GB"
+
+[build]
+create-missing = false
+
+[output.html.search]
+limit-results = 15
+
+[output.html]
+additional-css = ["core.css", "local.css", "se.css"]
diff --git a/src/epub/css/core.css b/core.css
similarity index 100%
rename from src/epub/css/core.css
rename to core.css
diff --git a/src/epub/css/local.css b/local.css
similarity index 100%
rename from src/epub/css/local.css
rename to local.css
diff --git a/src/epub/css/se.css b/se.css
similarity index 100%
rename from src/epub/css/se.css
rename to se.css
diff --git a/src/epub/text/imprint.md b/src/epub/text/imprint.md
index f576eac..41251b1 100644
--- a/src/epub/text/imprint.md
+++ b/src/epub/text/imprint.md
@@ -1,6 +1,8 @@
 # Imprint
 
-![The Standard Ebooks logo.](../images/logo.png) 
+<center>
+<img src="../images/logo.png"/>
+</center>
 
 This ebook is the product of many hours of hard work by volunteers for [Standard Ebooks](https://standardebooks.org), and builds on the hard work of other literature lovers made possible by the public domain.