[Library | Trunk]: Add new small logos. Change heading on small screens

git-svn-id: https://svn.driver.research-infrastructures.eu/driver/dnet40/modules/uoa-services-library/trunk/ng-openaire-library/src/assets@59544 d315682c-612b-4755-9ff5-7f18f6832af3

common/theme-changes.css

@@ -5,6 +5,32 @@
   line-height: 1.2;
 }
 
+@media only screen and (max-width: 639px) {
+  .uk-h1, h1 {
+    font-size: 45px !important;
+  }
+
+  .uk-h2, h2 {
+    font-size: 36px !important;
+  }
+
+  .uk-h3, h3 {
+    font-size: 27px !important;
+  }
+
+  .uk-h4, h4 {
+    font-size: 22px !important;;
+  }
+
+  .uk-h5, h5 {
+    font-size: 18px !important;;
+  }
+
+  .uk-h6, h6 {
+    font-size: 16px !important;;
+  }
+}
+
 .uk-h1, h1 {
   font-size: 54px;
   font-weight: 400;