diff --git a/src/ui/component/calendar/CustomCalendar.tsx b/src/ui/component/calendar/CustomCalendar.tsx
index 817e2fe..a5b2244 100644
--- a/src/ui/component/calendar/CustomCalendar.tsx
+++ b/src/ui/component/calendar/CustomCalendar.tsx
@@ -397,7 +397,6 @@ export const CustomCalendar = ({ data }: CustomCalendarProps) => {
         {
           barPositions.map(pos => (
             <PopoverTrigger
-              className="z-100"
               onClick={(e) => {
                 e.stopPropagation();
                 
@@ -407,7 +406,7 @@ export const CustomCalendar = ({ data }: CustomCalendarProps) => {
               <div
                 key={pos.segmentId}
                 className={cn(
-                  `flex flex-row justify-start items-center absolute z-100`,
+                  `flex flex-row justify-start items-center absolute`,
                   "py-0.5 px-2 rounded-sm text-xs text-white overflow-hidden"
                 )}
                 style={{...pos.positionStyle, backgroundColor: pos.style}}