improve music track play button on mobile

packages/app/src/components/Music/Track/index.jsx

@@ -12,7 +12,6 @@ import { Context } from "contexts/WithPlayerContext"
 import "./index.less"
 
 export default (props) => {
-    // use react context to get the current track
     const {
         track_manifest,
         playback_status,

packages/app/src/components/Music/Track/index.less

@@ -1,3 +1,25 @@
+html {
+    &.mobile {
+        .music-track {
+            .music-track_actions {
+                .music-track_action {
+                    position: relative;
+
+                    .music-track_orderIndex {
+                        transform: translate(-45%, -30%);
+                        padding: 0;
+                        font-size: 0.7rem;
+                    }
+
+                    .ant-btn {
+                        opacity: 1;
+                    }
+                }
+            }
+        }
+    }
+}
+
 .music-track {
     display: flex;
     flex-direction: row;