@@ -42,13 +42,6 @@ remark()
 - required: false
 - description: Metas of example code block
 
-### Options.transforms
-
-- type: object of string
-- default: {}
-- required: false
-- description: Transform functions of alias code
-
 ## Syntax
 
 ### code-example
 
@@ -28,12 +28,18 @@ function visitCode(tree, key, visitor) {
       meta &&
       meta.split(/\s/).some((item) => item.startsWith(key)),
     (node) => {
-      const { [key]: lang, copyToAfter, ...meta } = parseMeta(node.meta);
+      const { [key]: lang, ...meta } = parseMeta(node.meta);
+
+      const copyToAfter = 'copyToAfter' in meta;
+
+      if (copyToAfter) {
+        delete meta.copyToAfter;
+      }
 
       visitor({
         node,
         lang: lang || 'markdown',
-        copyToAfter: (copyToAfter === '' ? true : copyToAfter) || false,
+        copyToAfter,
         meta,
       });
     },
@@ -42,22 +48,23 @@ function visitCode(tree, key, visitor) {
 
 /* eslint-disable no-param-reassign */
 
-export function remarkCodeExample({ metas = {}, transforms = {} } = {}) {
+export function remarkCodeExample({ metas = {} } = {}) {
   return (tree) => {
-    visitCode(tree, 'code-alias-copy', ({ node, lang, copyToAfter, meta }) => {
-      const index = tree.children.indexOf(node);
-
-      node.meta = stringifyMeta(meta);
-
-      tree.children.splice(copyToAfter ? index + 1 : index, 0, {
-        ...node,
-        lang,
-        value:
-          typeof transforms[lang] === 'function'
-            ? transforms[lang](node.value)
-            : node.value,
-      });
-    });
+    visitCode(
+      tree,
+      'code-alias-copy',
+      ({ node, lang, copyToAfter = false, meta }) => {
+        const index = tree.children.indexOf(node);
+
+        node.meta = stringifyMeta(meta);
+
+        tree.children.splice(copyToAfter ? index + 1 : index, 0, {
+          ...node,
+          lang,
+          value: node.value,
+        });
+      },
+    );
 
     visitCode(
       tree,
 
@@ -59,29 +59,3 @@ test('code-alias-copy-after', async (t) => {
 
   getUtils(t).sameText(output, expected);
 });
-
-test('code-alias-copy-transform', async (t) => {
-  const input = `
-\`\`\`css tab code-alias-copy=less
-body {}
-\`\`\`
-`;
-
-  const expected = `
-\`\`\`less tab
-html {}
-\`\`\`
-
-\`\`\`css tab
-body {}
-\`\`\`
-`;
-
-  const output = await transform(input, {
-    transforms: {
-      less: (original) => original.replace('body', 'html'),
-    },
-  });
-
-  getUtils(t).sameText(output, expected);
-});