diff --git a/assets/scss/tufte.scss b/assets/scss/tufte.scss
index 3aaf9e5..a475235 100644
--- a/assets/scss/tufte.scss
+++ b/assets/scss/tufte.scss
@@ -395,7 +395,7 @@ div.supertable-wrapper > p,
 div.booktabs-wrapper {
 //    width: #{"min(55%, 770px)"};
     width: 50%;
-    align: center;
+    margin: auto;
 }
 
 div.fullwidth,