add fonts default

main/css/chamilo/default.css

@@ -5,7 +5,31 @@
  * Licensed GLP
  * Based on Bootstrap
 */
-@import url(http://fonts.googleapis.com/css?family=Open+Sans:400,600,300,700);
+@font-face {
+  font-family: 'Open Sans';
+  font-style: normal;
+  font-weight: 300;
+  src: local('Open Sans Light'), local('OpenSans-Light'), url(fonts/OpenSans-Light.woff2) format('woff2'), url(fonts/OpenSans-Light.woff) format('woff');
+}
+@font-face {
+  font-family: 'Open Sans';
+  font-style: normal;
+  font-weight: 400;
+  src: local('Open Sans'), local('OpenSans'), url(fonts/OpenSans.woff2) format('woff2'), url(fonts/OpenSans.woff) format('woff');
+}
+@font-face {
+  font-family: 'Open Sans';
+  font-style: normal;
+  font-weight: 600;
+  src: local('Open Sans Semibold'), local('OpenSans-Semibold'), url(fonts/OpenSans-Semibold.woff2) format('woff2'), url(fonts/OpenSans-Semibold.woff) format('woff');
+}
+@font-face {
+  font-family: 'Open Sans';
+  font-style: normal;
+  font-weight: 700;
+  src: local('Open Sans Bold'), local('OpenSans-Bold'), url(fonts/OpenSans-Bold.woff2) format('woff2'), url(fonts/OpenSans-Bold.woff) format('woff');
+}
+
 
 html {
   -ms-text-size-adjust: 100%;