diff --git a/public/assets/css/csvxml.css b/public/assets/css/csvxml.css
index 6878587..d4cd750 100644
--- a/public/assets/css/csvxml.css
+++ b/public/assets/css/csvxml.css
@@ -9,6 +9,7 @@
     src: local('Source-Sans-Pro'), local('Source Sans Pro'),
          url(../fonts/SourceSansPro-Regular.woff2) format('woff2'),
          url(../fonts/SourceSansPro-Regular.ttf) format('truetype');
+    font-display: swap;
 }
 
 /* ==============
diff --git a/public/assets/css/csvxml.min.css b/public/assets/css/csvxml.min.css
index c483275..e1462de 100644
--- a/public/assets/css/csvxml.min.css
+++ b/public/assets/css/csvxml.min.css
@@ -1,4 +1,4 @@
-@import 'editMenu.css';@font-face{font-family:sourceSansPro;src:local('Source-Sans-Pro'),local('Source Sans Pro'),url(../fonts/SourceSansPro-Regular.woff2)format('woff2'),url(../fonts/SourceSansPro-Regular.ttf)format('truetype')}*{box-sizing:border-box;z-index:1}
+@import 'editMenu.css';@font-face{font-family:sourceSansPro;src:local('Source-Sans-Pro'),local('Source Sans Pro'),url(../fonts/SourceSansPro-Regular.woff2)format('woff2'),url(../fonts/SourceSansPro-Regular.ttf)format('truetype');font-display:swap}*{box-sizing:border-box;z-index:1}
 body{margin:2em;background:#FFF;font-family:sourceSansPro,Arial,Helvetica,Times;font-size:1.2em;line-height:1.5em}
 a{text-decoration:none;color:inherit}
 h1{display:block;max-width:600px;margin:0 auto 1.5em auto}