diff --git a/components/alert/style/index.less b/components/alert/style/index.less
index abf540db96b7..0aa408c8117e 100644
--- a/components/alert/style/index.less
+++ b/components/alert/style/index.less
@@ -74,8 +74,8 @@
     overflow: hidden;
     font-size: @font-size-sm;
     line-height: 22px;
-    border: none;
     background-color: transparent;
+    border: none;
     cursor: pointer;
 
     .@{iconfont-css-prefix}-close {
diff --git a/components/input-number/style/index.less b/components/input-number/style/index.less
index 8b625c276364..fc84e586427b 100644
--- a/components/input-number/style/index.less
+++ b/components/input-number/style/index.less
@@ -140,8 +140,8 @@
   }
 
   &-handler-up {
-    cursor: pointer;
     border-top-right-radius: @border-radius-base;
+    cursor: pointer;
     &-inner {
       top: 50%;
       margin-top: -5px;
diff --git a/components/tabs/style/index.less b/components/tabs/style/index.less
index 27b3d33fcbfb..f716a5a04fb1 100644
--- a/components/tabs/style/index.less
+++ b/components/tabs/style/index.less
@@ -280,7 +280,6 @@
     height: 100%;
     border-bottom: 0;
 
-    .@{tab-prefix-cls}-tab-arrow-show,
     .@{tab-prefix-cls}-tab-arrow-show {
       width: 100%;
       height: @tabs-scrolling-size;
diff --git a/components/timeline/style/index.less b/components/timeline/style/index.less
index 8c111dc2de23..488425e6d149 100644
--- a/components/timeline/style/index.less
+++ b/components/timeline/style/index.less
@@ -134,6 +134,7 @@
       .@{timeline-prefix-cls}-item-tail,
       .@{timeline-prefix-cls}-item-head,
       .@{timeline-prefix-cls}-item-head-custom {
+        // stylelint-disable-next-line function-calc-no-invalid
         left: calc(100% - 4px - @timeline-width);
       }
       .@{timeline-prefix-cls}-item-content {
diff --git a/components/typography/style/index.less b/components/typography/style/index.less
index 89c01139b97f..63d822d8f1f0 100644
--- a/components/typography/style/index.less
+++ b/components/typography/style/index.less
@@ -172,6 +172,7 @@
     div& {
       left: -@input-padding-horizontal - 1px;
       margin-top: -@input-padding-vertical-base - 1px;
+      // stylelint-disable-next-line function-calc-no-invalid
       margin-bottom: calc(1em - @input-padding-vertical-base - 2px);
     }
 
diff --git a/site/theme/static/markdown.less b/site/theme/static/markdown.less
index f176def9d542..2983cdf55daf 100644
--- a/site/theme/static/markdown.less
+++ b/site/theme/static/markdown.less
@@ -349,7 +349,6 @@
     text-align: center;
     border: none;
   }
-  .ant-row .demo-col-1,
   .ant-row .demo-col-1 {
     background: fade(#00a0e9, 70%);
   }