diff --git a/bi/widget.css b/bi/widget.css
index 39a07dbd6..8b7bfd0aa 100644
--- a/bi/widget.css
+++ b/bi/widget.css
@@ -233,13 +233,12 @@
 }
 .bi-fine-tuning-number-editor .top-button {
   border-left: 1px solid #d4dadd;
+  border-bottom: 1px solid #d4dadd;
 }
 .bi-fine-tuning-number-editor .bottom-button {
+  border-top: 1px solid #d4dadd;
   border-left: 1px solid #d4dadd;
 }
-.bi-fine-tuning-number-editor .split-line {
-  background-color: #d4dadd;
-}
 /****添加计算宽度的--运算符直接需要space****/
 /****** common color(常用颜色,可用于普遍场景) *****/
 /**** custom color(自定义颜色,用于特定场景) ****/
diff --git a/dist/widget.css b/dist/widget.css
index 39a07dbd6..8b7bfd0aa 100644
--- a/dist/widget.css
+++ b/dist/widget.css
@@ -233,13 +233,12 @@
 }
 .bi-fine-tuning-number-editor .top-button {
   border-left: 1px solid #d4dadd;
+  border-bottom: 1px solid #d4dadd;
 }
 .bi-fine-tuning-number-editor .bottom-button {
+  border-top: 1px solid #d4dadd;
   border-left: 1px solid #d4dadd;
 }
-.bi-fine-tuning-number-editor .split-line {
-  background-color: #d4dadd;
-}
 /****添加计算宽度的--运算符直接需要space****/
 /****** common color(常用颜色,可用于普遍场景) *****/
 /**** custom color(自定义颜色,用于特定场景) ****/
diff --git a/src/css/widget/finetuningnumbereditor/finetuning.number.editor.css b/src/css/widget/finetuningnumbereditor/finetuning.number.editor.css
index 69e34450a..3c5b52c4d 100644
--- a/src/css/widget/finetuningnumbereditor/finetuning.number.editor.css
+++ b/src/css/widget/finetuningnumbereditor/finetuning.number.editor.css
@@ -9,10 +9,9 @@
 }
 .bi-fine-tuning-number-editor .top-button {
   border-left: 1px solid #d4dadd;
+  border-bottom: 1px solid #d4dadd;
 }
 .bi-fine-tuning-number-editor .bottom-button {
+  border-top: 1px solid #d4dadd;
   border-left: 1px solid #d4dadd;
 }
-.bi-fine-tuning-number-editor .split-line {
-  background-color: #d4dadd;
-}
diff --git a/src/less/widget/finetuningnumbereditor/finetuning.number.editor.less b/src/less/widget/finetuningnumbereditor/finetuning.number.editor.less
index 3074def16..4cb593f27 100644
--- a/src/less/widget/finetuningnumbereditor/finetuning.number.editor.less
+++ b/src/less/widget/finetuningnumbereditor/finetuning.number.editor.less
@@ -5,11 +5,10 @@
   .border-radius(2px);
   & .top-button {
     border-left: 1px solid @border-color-normal;
+    border-bottom: 1px solid @border-color-normal;
   }
   & .bottom-button {
+    border-top: 1px solid @border-color-normal;
     border-left: 1px solid @border-color-normal;
   }
-  & .split-line{
-    background-color: @border-color-normal;
-  }
 }
\ No newline at end of file