Update index.tsx

src/views/music/music-detail/index.tsx

@@ -812,8 +812,7 @@ export default defineComponent({
                     <>
                       <span
                         style={{
-                          visibility:
-                            state.platformType === 'TEACHER' ? '' : 'hidden'
+                          visibility: state.platformType === 'TEACHER' ? "visible" : "hidden"
                         }}
                         class={styles.download}
                         onClick={() => {