diff --git a/components/slider/style/index.less b/components/slider/style/index.less
index 98b7685e0d..66d63b1552 100644
--- a/components/slider/style/index.less
+++ b/components/slider/style/index.less
@@ -66,6 +66,15 @@
     &.@{ant-prefix}-tooltip-open {
       border-color: @slider-handle-color-tooltip-open;
     }
+
+    &::after {
+      position: absolute;
+      top: -6px;
+      right: -6px;
+      bottom: -6px;
+      left: -6px;
+      content: "";
+    }
   }
 
   &:hover {