diff --git a/statics/sass/style.scss b/statics/sass/style.scss
index ac2d1e4..75b5c61 100644
--- a/statics/sass/style.scss
+++ b/statics/sass/style.scss
@@ -18,6 +18,7 @@
 body {
   font-family: sans-serif;
   font-size: 0.9rem;
+  tab-size: 4;
 }
 
 header {