diff --git a/wwwroot/css/base.css b/wwwroot/css/base.css
index 2ca4ad1..91f631f 100644
--- a/wwwroot/css/base.css
+++ b/wwwroot/css/base.css
@@ -97,3 +97,15 @@ textarea {
   max-height: 12em;
   resize: none;
 }
+
+.fa-hourglass-half {
+  animation: spin 1.5s ease infinite;
+}
+
+@keyframes spin {
+  0%, 50%, 100% { scale: 1; }
+  25%, 75% { scale: .9; }
+  0% { rotate: 0; }
+  50% { rotate: 180deg; }
+  100% { rotate: 360deg; }
+}