Add pulsating text

Author: Koenvh1

src/style/loading.css

@@ -15,4 +15,14 @@
 
 #loading img {
     max-width: 40rem;
+}
+
+#loading p {
+    animation: pulsate 2s infinite;
+}
+
+@keyframes pulsate {
+  from { opacity: 1; }
+  50% { opacity: 0; }
+  to { opacity: 1; }
 }