diff --git a/style/components/slider.less b/style/components/slider.less
index b4eb1dcaa7..0c570c1231 100644
--- a/style/components/slider.less
+++ b/style/components/slider.less
@@ -153,8 +153,9 @@
     }
 
     &-inner {
-      padding: 6px 0;
-      width: 24px;
+      padding: 6px 2px;
+      width: 100%;
+      min-width: 24px;
       height: 24px;
       font-size: @font-size-base;
       line-height: 1;