reconstruire UC inceput

UC/frontend/public/css/transition.css

@@ -0,0 +1,25 @@
+.fade-in {
+    animation: fadeInAnimation 0.5s ease-in forwards;
+}
+
+.fade-out {
+    animation: fadeOutAnimation 0.5s ease-out forwards;
+}
+
+@keyframes fadeInAnimation {
+    from {
+        opacity: 0;
+    }
+    to {
+        opacity: 1;
+    }
+}
+
+@keyframes fadeOutAnimation {
+    from {
+        opacity: 1;
+    }
+    to {
+        opacity: 0;
+    }
+}