diff --git a/css-rules.txt b/css-rules.txt
new file mode 100644
index 0000000..48cac8d
--- /dev/null
+++ b/css-rules.txt
@@ -0,0 +1,8 @@
+# Z-Index
+
+Tab-Headers: 2
+Metrics: 3
+Mat-Select: 4
+Nav-bar: 980
+Modal: 10000
+Modal-Select: 10001
diff --git a/library.css b/library.css
index 5ac0945..4f9b6c4 100644
--- a/library.css
+++ b/library.css
@@ -2130,5 +2130,9 @@ Impact Factor -  ATHENA CODE */
 
 /*mat-select-panel*/
 div.cdk-overlay-container {
+    z-index: 4 !important;
+}
+
+div.cdk-overlay-container.modal-select {
     z-index: 10001 !important;
-}
\ No newline at end of file
+}