diff --git a/src/views/Selection/TranBtn.js b/src/views/Selection/TranBtn.js
index e96e50b..bdd7603 100644
--- a/src/views/Selection/TranBtn.js
+++ b/src/views/Selection/TranBtn.js
@@ -1,8 +1,17 @@
 import { isMobile } from "../../libs/mobile";
+import { limitNumber } from "../../libs/utils";
 
 export default function TranBtn({ onClick, position, tranboxSetting }) {
-  const left = position.x + tranboxSetting.btnOffsetX;
-  const top = position.y + tranboxSetting.btnOffsetY;
+  const left = limitNumber(
+    position.x + tranboxSetting.btnOffsetX,
+    0,
+    window.innerWidth - 32
+  );
+  const top = limitNumber(
+    position.y + tranboxSetting.btnOffsetY,
+    0,
+    window.innerHeight - 32
+  );
 
   const touchProps = isMobile
     ? {
diff --git a/src/views/Selection/index.js b/src/views/Selection/index.js
index 6942c84..188e91b 100644
--- a/src/views/Selection/index.js
+++ b/src/views/Selection/index.js
@@ -55,7 +55,7 @@ export default function Slection({
   useEffect(() => {
     async function handleMouseup(e) {
       e.stopPropagation();
-      await sleep(10);
+      await sleep(100);
 
       const selectedText = window.getSelection()?.toString()?.trim() || "";
       setSelText(selectedText);