diff --git a/example/docs/zh-CN/guide/changelog.md b/example/docs/zh-CN/guide/changelog.md
index a6c2f6df..2c2ec7d5 100644
--- a/example/docs/zh-CN/guide/changelog.md
+++ b/example/docs/zh-CN/guide/changelog.md
@@ -19,6 +19,7 @@
           <li>[新增] notice-bar 通告栏。</li>
           <li>[新增] scroll 虚拟滚动组件。</li> 
           <li>[新增] transition 过渡动画组件。</li>
+          <li>[新增] collapse 折叠面板过渡动画。</li>
           <li>[新增] table 表格组件 excel 导出工具栏。</li>
           <li>[新增] table column 选项 sort 属性, 开启字段排序。</li>
           <li>[新增] page 分页组件 v-model 属性, 支持默认页设置。</li>
diff --git a/src/component/collapseItem/index.vue b/src/component/collapseItem/index.vue
index c77f9ec8..cc4c3291 100644
--- a/src/component/collapseItem/index.vue
+++ b/src/component/collapseItem/index.vue
@@ -39,7 +39,10 @@ const showHandle = function () {
     // 普通折叠面板 --> 展开
     activeValues.value.push(props.id);
   }
-  emit("update:modelValue",accordion ? activeValues.value[0] || null : activeValues.value);
+  emit(
+    "update:modelValue",
+    accordion ? activeValues.value[0] || null : activeValues.value
+  );
   emit("change", props.id, !_isShow, activeValues.value);
 };
 </script>
diff --git a/src/component/transition/index.vue b/src/component/transition/index.vue
index 5577c015..4d000300 100644
--- a/src/component/transition/index.vue
+++ b/src/component/transition/index.vue
@@ -59,7 +59,11 @@ const beforeLeave = (el: any) => {
   el.dataset.oldPaddingBottom = el.style.paddingBottom;
   el.dataset.oldOverflow = el.style.overflow;
   var computedStyle = getComputedStyle(el, null);
-  el.style.height = el.scrollHeight - parseInt(computedStyle.paddingTop) - parseInt(computedStyle.paddingBottom) + "px";
+  el.style.height =
+    el.scrollHeight -
+    parseInt(computedStyle.paddingTop) -
+    parseInt(computedStyle.paddingBottom) +
+    "px";
   el.style.overflow = "hidden";
 };