diff --git a/src/epub/content.opf b/src/epub/content.opf
index 878ad0a..65cb1d7 100644
--- a/src/epub/content.opf
+++ b/src/epub/content.opf
@@ -68,7 +68,7 @@
https://www.gutenberg.org/ebooks/74
https://books.google.com/books?id=OR46AQAAIAAJ
The transcription was missing several italicized words; those and the chapter headers were added from the scans.
- 72984
+ 72980
81.12
https://en.wikipedia.org/wiki/The_Adventures_of_Tom_Sawyer
https://github.com/standardebooks/mark-twain_the-adventures-of-tom-sawyer
diff --git a/src/epub/css/core.css b/src/epub/css/core.css
index 73ac02e..7d125ba 100644
--- a/src/epub/css/core.css
+++ b/src/epub/css/core.css
@@ -99,6 +99,12 @@ i > em{
font-style: normal;
}
+ol,
+ul{
+ margin-bottom: 1em;
+ margin-top: 1em;
+}
+
header{
break-after: avoid;
break-inside: avoid;