diff --git a/src/styles/global-styles.scss b/src/styles/global-styles.scss
index a5b170b2..710e78ad 100644
--- a/src/styles/global-styles.scss
+++ b/src/styles/global-styles.scss
@@ -154,7 +154,6 @@ html {
       margin: var(--tooltip-arrow-size) 0;
     }
   }
-
   &[aria-hidden='true'] {
     visibility: hidden;
     opacity: 0;
@@ -165,4 +164,5 @@ html {
     opacity: 1;
     transition: opacity .15s;
   }
+  &.in-modal-tt { z-index: 999; }
 }