diff --git a/css/01-base.css b/css/01-base.css
index 54a3fd0..ff4c334 100644
--- a/css/01-base.css
+++ b/css/01-base.css
@@ -139,7 +139,7 @@ kbd {
   /* IE fix */
   white-space: pre-wrap;
   font-family: Consolas, 'DejaVu Sans Mono', Courier, monospace;
-  line-height: 1;
+  line-height: normal;
 }
 code,
 kbd,
diff --git a/less/01-base.less b/less/01-base.less
index 63fa612..dd549e7 100644
--- a/less/01-base.less
+++ b/less/01-base.less
@@ -124,7 +124,7 @@ kbd {
 	white-space: pre-line; /* IE fix */
 	white-space: pre-wrap;
 	font-family: @fontstack2;
-	line-height: 1;
+	line-height: normal;
 }
 code, kbd, mark {
 	border-radius: 2px;