compile design.css

css/design.css

+@font-face {
+  font-family: 'Lato';
+  font-style: normal;
+  font-weight: 400;
+  font-display: swap;
+  src: local('Lato Regular'), local('Lato-Regular'), url(https://fonts.gstatic.com/s/lato/v15/S6uyw4BMUTPHjx4wWw.ttf) format('truetype');
+}
 @viewport {
   width: device-width;
   user-zoom: fixed;