diff --git a/assets/css/common/_base.scss b/assets/css/common/_base.scss
index 980d2c16..8595d5ec 100644
--- a/assets/css/common/_base.scss
+++ b/assets/css/common/_base.scss
@@ -24,7 +24,7 @@ body {
   font-size: 13px;
   margin: 0;
   padding: 0;
-  line-height: 1.15em;
+  line-height: 1.15;
 }
 
 h1, h2, h3, h4, h5 {