diff --git a/resources/report/css/overrides.css b/resources/report/css/overrides.css
index 8febe261..17d1cea6 100644
--- a/resources/report/css/overrides.css
+++ b/resources/report/css/overrides.css
@@ -57,3 +57,12 @@ core-drawer-panel::shadow #drawer {
 #settingsDialog loot-dropdown-menu::shadow paper-dropdown-menu {
     padding-top: 4px;
 }
+/* Add a transition to the core-tooltip tooltips. */
+html /deep/ core-tooltip::shadow .core-tooltip {
+    opacity: 0;
+    transition: opacity 0.3s, visibility 0s 0.3s;
+}
+html /deep/ core-tooltip:hover:not([disabled])::shadow .core-tooltip {
+    opacity: 1;
+    transition-delay: 0s;
+}