diff --git a/style/vendor/SourceSansPro/SourceSansPro.css b/style/vendor/SourceSansPro/SourceSansPro.css
index 9417ff64..890ea080 100644
--- a/style/vendor/SourceSansPro/SourceSansPro.css
+++ b/style/vendor/SourceSansPro/SourceSansPro.css
@@ -9,70 +9,77 @@ https://fonts.googleapis.com/css?family=Source+Sans+Pro:300,400,600,700,300itali
 
 /* source-sans-pro-300 - latin */
 @font-face {
-  font-family: 'Source Sans Pro';
+  font-family: "Source Sans Pro";
   font-style: normal;
   font-weight: 300;
-  src: local('Source Sans Pro Light'), local('SourceSansPro-Light'),
-       url('source-sans-pro-v13-latin-300.woff2') format('woff2'), /* Chrome 26+, Opera 23+, Firefox 39+ */
-       url('source-sans-pro-v13-latin-300.woff') format('woff'); /* Chrome 6+, Firefox 3.6+, IE 9+, Safari 5.1+ */
+  font-display: swap;
+  src: local("Source Sans Pro Light"), local("SourceSansPro-Light"),
+       url("source-sans-pro-v13-latin-300.woff2") format("woff2"), /* Chrome 26+, Opera 23+, Firefox 39+ */
+       url("source-sans-pro-v13-latin-300.woff") format("woff"); /* Chrome 6+, Firefox 3.6+, IE 9+, Safari 5.1+ */
 }
 
 /* source-sans-pro-300italic - latin */
 @font-face {
-  font-family: 'Source Sans Pro';
+  font-family: "Source Sans Pro";
   font-style: italic;
   font-weight: 300;
-  src: local('Source Sans Pro Light Italic'), local('SourceSansPro-LightItalic'),
-       url('source-sans-pro-v13-latin-300italic.woff2') format('woff2'), /* Chrome 26+, Opera 23+, Firefox 39+ */
-       url('source-sans-pro-v13-latin-300italic.woff') format('woff'); /* Chrome 6+, Firefox 3.6+, IE 9+, Safari 5.1+ */
+  font-display: swap;
+  src: local("Source Sans Pro Light Italic"), local("SourceSansPro-LightItalic"),
+       url("source-sans-pro-v13-latin-300italic.woff2") format("woff2"), /* Chrome 26+, Opera 23+, Firefox 39+ */
+       url("source-sans-pro-v13-latin-300italic.woff") format("woff"); /* Chrome 6+, Firefox 3.6+, IE 9+, Safari 5.1+ */
 }
 
 /* source-sans-pro-regular - latin */
 @font-face {
-  font-family: 'Source Sans Pro';
+  font-family: "Source Sans Pro";
   font-style: normal;
   font-weight: 400;
-  src: local('Source Sans Pro Regular'), local('SourceSansPro-Regular'),
-       url('source-sans-pro-v13-latin-regular.woff2') format('woff2'), /* Chrome 26+, Opera 23+, Firefox 39+ */
-       url('source-sans-pro-v13-latin-regular.woff') format('woff'); /* Chrome 6+, Firefox 3.6+, IE 9+, Safari 5.1+ */
+  font-display: swap;
+  src: local("Source Sans Pro Regular"), local("SourceSansPro-Regular"),
+       url("source-sans-pro-v13-latin-regular.woff2") format("woff2"), /* Chrome 26+, Opera 23+, Firefox 39+ */
+       url("source-sans-pro-v13-latin-regular.woff") format("woff"); /* Chrome 6+, Firefox 3.6+, IE 9+, Safari 5.1+ */
 }
 
 /* source-sans-pro-italic - latin */
 @font-face {
-  font-family: 'Source Sans Pro';
+  font-family: "Source Sans Pro";
   font-style: italic;
   font-weight: 400;
-  src: local('Source Sans Pro Italic'), local('SourceSansPro-Italic'),
-       url('source-sans-pro-v13-latin-italic.woff2') format('woff2'), /* Chrome 26+, Opera 23+, Firefox 39+ */
-       url('source-sans-pro-v13-latin-italic.woff') format('woff'); /* Chrome 6+, Firefox 3.6+, IE 9+, Safari 5.1+ */
+  font-display: swap;
+  src: local("Source Sans Pro Italic"), local("SourceSansPro-Italic"),
+       url("source-sans-pro-v13-latin-italic.woff2") format("woff2"), /* Chrome 26+, Opera 23+, Firefox 39+ */
+       url("source-sans-pro-v13-latin-italic.woff") format("woff"); /* Chrome 6+, Firefox 3.6+, IE 9+, Safari 5.1+ */
 }
 
 /* source-sans-pro-600 - latin */
 @font-face {
-  font-family: 'Source Sans Pro';
+  font-family: "Source Sans Pro";
   font-style: normal;
   font-weight: 600;
-  src: local('Source Sans Pro SemiBold'), local('SourceSansPro-SemiBold'),
-       url('source-sans-pro-v13-latin-600.woff2') format('woff2'), /* Chrome 26+, Opera 23+, Firefox 39+ */
-       url('source-sans-pro-v13-latin-600.woff') format('woff'); /* Chrome 6+, Firefox 3.6+, IE 9+, Safari 5.1+ */
+  font-display: swap;
+  src: local("Source Sans Pro SemiBold"), local("SourceSansPro-SemiBold"),
+       url("source-sans-pro-v13-latin-600.woff2") format("woff2"), /* Chrome 26+, Opera 23+, Firefox 39+ */
+       url("source-sans-pro-v13-latin-600.woff") format("woff"); /* Chrome 6+, Firefox 3.6+, IE 9+, Safari 5.1+ */
 }
 
 /* source-sans-pro-600italic - latin */
 @font-face {
-  font-family: 'Source Sans Pro';
+  font-family: "Source Sans Pro";
   font-style: italic;
   font-weight: 600;
-  src: local('Source Sans Pro SemiBold Italic'), local('SourceSansPro-SemiBoldItalic'),
-       url('source-sans-pro-v13-latin-600italic.woff2') format('woff2'), /* Chrome 26+, Opera 23+, Firefox 39+ */
-       url('source-sans-pro-v13-latin-600italic.woff') format('woff'); /* Chrome 6+, Firefox 3.6+, IE 9+, Safari 5.1+ */
+  font-display: swap;
+  src: local("Source Sans Pro SemiBold Italic"), local("SourceSansPro-SemiBoldItalic"),
+       url("source-sans-pro-v13-latin-600italic.woff2") format("woff2"), /* Chrome 26+, Opera 23+, Firefox 39+ */
+       url("source-sans-pro-v13-latin-600italic.woff") format("woff"); /* Chrome 6+, Firefox 3.6+, IE 9+, Safari 5.1+ */
 }
 
 /* source-sans-pro-700 - latin */
 @font-face {
-  font-family: 'Source Sans Pro';
+  font-family: "Source Sans Pro";
   font-style: normal;
   font-weight: 700;
-  src: local('Source Sans Pro Bold'), local('SourceSansPro-Bold'),
-       url('source-sans-pro-v13-latin-700.woff2') format('woff2'), /* Chrome 26+, Opera 23+, Firefox 39+ */
-       url('source-sans-pro-v13-latin-700.woff') format('woff'); /* Chrome 6+, Firefox 3.6+, IE 9+, Safari 5.1+ */
+  font-display: swap;
+  src: local("Source Sans Pro Bold"), local("SourceSansPro-Bold"),
+       url("source-sans-pro-v13-latin-700.woff2") format("woff2"), /* Chrome 26+, Opera 23+, Firefox 39+ */
+       url("source-sans-pro-v13-latin-700.woff") format("woff"); /* Chrome 6+, Firefox 3.6+, IE 9+, Safari 5.1+ */
 }