🐛 Fix Button line-height style issue

close #18107
close #13214 too

caused by the fix of #12978

changing another way to fix #12978

components/button/style/index.less

@@ -12,10 +12,7 @@
 // Button styles
 // -----------------------------
 .@{btn-prefix-cls} {
-  // Fixing https://github.com/ant-design/ant-design/issues/12978
-  // It is a render problem of chrome, which is only happened in the codesandbox demo
-  // 0.001px solution works and I don't why
-  line-height: @line-height-base - 0.001;
+  line-height: @line-height-base;
   .btn;
   .btn-default;
 
@@ -197,6 +194,11 @@
 
 a.@{btn-prefix-cls} {
   line-height: @btn-height-base - 2px;
+  // Fixing https://github.com/ant-design/ant-design/issues/12978
+  // It is a render problem of chrome, which is only happened in the codesandbox demo
+  // 0.1px for padding-top solution works and I don't why
+  padding-top: 0.1px;
+
   &-lg {
     line-height: @btn-height-lg - 2px;
   }