diff --git a/components/popover/style/index.less b/components/popover/style/index.less
index 16c71fa26..6cc7c294b 100644
--- a/components/popover/style/index.less
+++ b/components/popover/style/index.less
@@ -137,6 +137,7 @@
       background-color: @popover-bg;
       content: '';
       pointer-events: auto;
+      .roundedArrow(@popover-arrow-width, 5px, @popover-bg);
     }
   }
 
@@ -170,8 +171,8 @@
     left: @popover-distance - @popover-arrow-rotate-width;
 
     &-content {
-      box-shadow: -3px 3px 7px fade(@black, 7%);
-      transform: translateX((@popover-arrow-rotate-width / 2)) rotate(45deg);
+      box-shadow: 3px 3px 7px fade(@black, 7%);
+      transform: translateX((@popover-arrow-rotate-width / 2)) rotate(135deg);
     }
   }
 
@@ -194,8 +195,8 @@
     top: @popover-distance - @popover-arrow-rotate-width;
 
     &-content {
-      box-shadow: -2px -2px 5px fade(@black, 6%);
-      transform: translateY((@popover-arrow-rotate-width / 2)) rotate(45deg);
+      box-shadow: 2px 2px 5px fade(@black, 6%);
+      transform: translateY((@popover-arrow-rotate-width / 2)) rotate(-135deg);
     }
   }
 
@@ -218,8 +219,8 @@
     right: @popover-distance - @popover-arrow-rotate-width;
 
     &-content {
-      box-shadow: 3px -3px 7px fade(@black, 7%);
-      transform: translateX((-@popover-arrow-rotate-width / 2)) rotate(45deg);
+      box-shadow: 3px 3px 7px fade(@black, 7%);
+      transform: translateX((-@popover-arrow-rotate-width / 2)) rotate(-45deg);
     }
   }
 
diff --git a/components/progress/Line.tsx b/components/progress/Line.tsx
index fb87838f1..a51e44ee0 100644
--- a/components/progress/Line.tsx
+++ b/components/progress/Line.tsx
@@ -93,7 +93,7 @@ export default defineComponent({
       return {
         width: `${validProgress(percent)}%`,
         height: `${strokeWidth || (size === 'small' ? 6 : 8)}px`,
-        borderRadius: strokeLinecap === 'square' ? 0 : '',
+        borderRadius: strokeLinecap === 'square' ? 0 : undefined,
         ...(backgroundProps.value as any),
       };
     });
@@ -106,7 +106,7 @@ export default defineComponent({
       return {
         width: `${validProgress(successPercent.value)}%`,
         height: `${strokeWidth || (size === 'small' ? 6 : 8)}px`,
-        borderRadius: strokeLinecap === 'square' ? 0 : '',
+        borderRadius: strokeLinecap === 'square' ? 0 : undefined,
         backgroundColor: success?.strokeColor,
       };
     });
diff --git a/components/progress/index.en-US.md b/components/progress/index.en-US.md
index 3e0761c72..796a1d4e6 100644
--- a/components/progress/index.en-US.md
+++ b/components/progress/index.en-US.md
@@ -23,6 +23,7 @@ Properties that shared by all types.
 | format | The template function of the content | function(percent, successPercent) | (percent) => percent + `%` |  |
 | percent | To set the completion percentage | number | 0 |  |
 | showInfo | Whether to display the progress value and the status icon | boolean | true |  |
+| size | To set the size of the progress | `default` \| `small` | `default` |
 | status | To set the status of the Progress, options: `success` `exception` `normal` `active`(line only) | string | - |  |
 | strokeColor | The color of progress bar | string | - |  |
 | strokeLinecap | To set the style of the progress linecap | `round` \| `square` | `round` |  |
diff --git a/components/progress/index.zh-CN.md b/components/progress/index.zh-CN.md
index 0e8461e69..9f023c31b 100644
--- a/components/progress/index.zh-CN.md
+++ b/components/progress/index.zh-CN.md
@@ -24,6 +24,7 @@ cover: https://gw.alipayobjects.com/zos/alicdn/xqsDu4ZyR/Progress.svg
 | format | 内容的模板函数 | function(percent, successPercent) | (percent) => percent + `%` |  |
 | percent | 百分比 | number | 0 |  |
 | showInfo | 是否显示进度数值或状态图标 | boolean | true |  |
+| size | 进度条大小 | `default` \| `small` | `default` |
 | status | 状态，可选：`success` `exception` `normal` `active`(仅限 line) | string | - |  |
 | strokeColor | 进度条的色彩 | string | - |  |
 | strokeLinecap | 进度条的样式 | `round` \| `square` | `round` |  |