diff --git a/themes/mytheme/layouts/partials/head.html b/themes/mytheme/layouts/partials/head.html
index fda38e9..58d462c 100644
--- a/themes/mytheme/layouts/partials/head.html
+++ b/themes/mytheme/layouts/partials/head.html
@@ -37,6 +37,11 @@
 <meta name="naver-site-verification" content="{{ site.Params.analytics.naver.SiteVerificationTag }}">
 {{- end }}
 
+<script type="text/javascript">
+    let vh = window.innerHeight * 0.01;
+    document.documentElement.style.setProperty('--vh', `${vh}px`);
+</script>
+
 {{- /* Styles */}}
 
 {{- /* includes */}}