diff --git a/static/styles.css b/static/styles.css
index bee1caa..6015ebd 100644
--- a/static/styles.css
+++ b/static/styles.css
@@ -203,8 +203,8 @@ h2 {
   color: inherit;
 }
 
-.btn + .btn {
-  margin-left: 0.5rem;
+.book-detail-body .btn {
+  margin: 0 0.5rem 0.5rem 0;
 }
 
 .reader {
@@ -243,10 +243,6 @@ h2 {
   margin-top: 1.5rem;
 }
 
-.reader-nav .btn + .btn {
-  margin-left: 0;
-}
-
 .reader-nav-next {
   margin-left: auto;
 }