diff --git a/less/slider.less b/less/slider.less
index ab4209a..99383ea 100644
--- a/less/slider.less
+++ b/less/slider.less
@@ -7,7 +7,7 @@
       position: absolute;
       bottom: 0;
       left: @tab-margin-horizontal;
-      right: 0;
+      right: @tab-margin-horizontal;
       border-bottom: @tab-border-width solid @tab-border;
     }
   }
diff --git a/less/tab.less b/less/tab.less
index 0d66cd2..40bd021 100644
--- a/less/tab.less
+++ b/less/tab.less
@@ -28,7 +28,7 @@
     position: absolute;
     bottom: 0;
     left: @tab-margin-horizontal;
-    right: 0;
+    right: @tab-margin-horizontal;
     border-bottom: @tab-border-width solid @tab-border;
   }
 }