diff --git a/source/markdown/posts/test post.md b/source/markdown/posts/test post.md
index a70a34f..69f104d 100644
--- a/source/markdown/posts/test post.md	
+++ b/source/markdown/posts/test post.md	
@@ -2,8 +2,67 @@
 title: Test post
 date: 2021-07-26
 tags:
-    - tag1
-    - tag2
+    - test
 ---
 
-A post have title, date, tag, and content.
+<!--
+comment
+todo: video, html tags, underline, toc, color (css), embed, md extension, latex, image, underline
+-->
+
+This post exists to test various features such as markdown-to-html conversion.<br />
+A post have title, post date, tags, and content.
+
+## Image
+
+<img src="/icon/icon.svg" alt="developomp icon" width="100">
+
+## Table
+
+| identifier | value |
+| :--------- | :---- |
+| one        | 1     |
+| two        | 2     |
+| three      | 3     |
+
+## List
+
+-   Unordered list
+    -   sub item
+    -   sub item
+-   Unordered list
+-   Unordered list
+
+1. Ordered list
+    1. sub item
+    2. sub item
+2. Ordered list
+3. Ordered list
+
+## Code
+
+`code`<br />
+
+```python
+print("code block")
+```
+
+## Etc
+
+> blockquote
+>
+> > nested blockquote
+
+**bold**<br />
+_italic_<br />
+~~strikethrough~~
+
+## HTML
+
+<p align="center">
+	centered paragraph
+</p>
+
+## Key
+
+<kbd>Ctrl</kbd>+<kbd>C</kbd>