diff --git a/Arona/src/widget/misc/slider.h b/Arona/src/widget/misc/slider.h
index 898bda0..56ff757 100644
--- a/Arona/src/widget/misc/slider.h
+++ b/Arona/src/widget/misc/slider.h
@@ -18,19 +18,31 @@ public:
 
     const float bar_width = 20; // 当水平时，值为bar的宽度
     slider_mode _mode;
+    std::string value_to_string()
+    {
+        if constexpr (std::is_same_v<T, float>) {
+            std::ostringstream ss;
+            ss << std::fixed << std::setprecision(2) << *value;
+            return ss.str();
+        } else if constexpr (std::is_same_v<T, int>) {
+            return std::to_string(*value);
+        } else {
+            return "Unknown type";
+        }
+    }
 
     slider(hi::widget const* parent, bool horizontal, slider_mode in_mode) noexcept : hi::widget(parent), _horizontal(horizontal) {
-        min_value = (T)0;
-        max_value = (T)1;
-        value = (T)0.5;
+        min_value = static_cast<T>(0);
+        max_value = static_cast<T>(1);
+        value = static_cast<T>(0.5);
         _internal_value = *value;
         _mode = in_mode;
-        _value_txt = std::to_string(*value);
-        _value_text = std::make_unique<hi::text_widget>(this, _value_txt, hi::alignment::top_flush());
+        _value_txt = value_to_string();
+        _value_text = std::make_unique<hi::text_widget>(this, _value_txt, hi::alignment::middle_center());
 
         _value_changed = value.subscribe([this](T in_value) {
             _internal_value = in_value;
-            _value_txt = std::to_string(in_value);
+            _value_txt = value_to_string();
             request_redraw();
         });
         _max_value_changed = max_value.subscribe([this](T in_value) {
@@ -145,10 +157,14 @@ public:
                     return true;
                 }
                 break;
+            case hi::gui_event_type::mouse_enter:
+                _mouse_hoverd = true;
+            break;
             case hi::gui_event_type::mouse_exit:
             case hi::gui_event_type::mouse_exit_window:
             case hi::gui_event_type::keyboard_exit:
                 _micro_controls = false;
+                _mouse_hoverd = false;
             default:;
         }
 
@@ -184,7 +200,8 @@ public:
             }
         }
         // Draw value text
-        _value_text->draw(context);
+        if (_mouse_hoverd)
+            _value_text->draw(context);
     }
 
     void set_layout(hi::widget_layout const &context) noexcept override {
@@ -204,6 +221,8 @@ private:
     hi::callback<void(T)> _value_changed;
     hi::callback<void(T)> _max_value_changed;
     hi::callback<void(T)> _min_value_changed;
+
     std::unique_ptr<hi::text_widget> _value_text;
     hi::observer<hi::txt> _value_txt;
+    bool _mouse_hoverd = false;
 };