diff --git a/_posts/2021-04-27-dark-mode.md b/_posts/2021-04-27-dark-mode.md
deleted file mode 100644
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--- a/_posts/2021-04-27-dark-mode.md
+++ /dev/null
@@ -1,98 +0,0 @@
----
-layout: post
-title: Dark Mode
-tags: [Katex, Mermaid, Markdown]
-categories: Demo
----
-
-More colors with less light. Click the **half-moon** most top-right button to turn the lights ON/OFF.
-Here is a bit of everything, so you can check how the theme look, have fun! 👌
-
-
-# Headers
-## Level 2
-### Level 3
-#### Level 4
-##### Level 5
-###### Level 6
- 
-# [Headers with links](http://localhost)
-## [Level 2](http://localhost)
-### [Level 3](http://localhost)
-#### [Level 4](http://localhost)
-##### [Level 5](http://localhost) 
-###### [Level 6](http://localhost)
-
-## Code highlight
-Mode specific code highlighting themes. [Kramdown](https://kramdown.gettalong.org/) which is responsible for the color highlighting may be more limited than your IDE.
-
-```python
-#!/usr/bin/env python
-"""
-Test file for syntax
-"""
-# TODO: Use dark mode
-from sys import os
-
-def foo(bar): 
-    try:
-        print(bar)
-    except NameError:
-        print("Variable bar is not defined")
-
-
-class Bar(object): 
-    def __init__(self):
-        foo(1)
-        self.octal = '\04'
-        self.text = """Example \t\n"""
-    
-    def __exit__(self, *args):
-        print('exit\u1111\xFF')
-        pass
-    
-    @staticmethod
-    def example():
-        assert (1.0 and 2L) or True
-        return { "example": [(1,), (r'raw', u'unicode')]}
-```
-
-## Tables
-
-| hex | dec | oct |
-| -   | -   | -   |
-| 0   | 0   | 0   |
-| 5   | 5   | 5   |
-| A   | 10  | 12  |
-| F   | 16  | 20  |
-| F5  | 21  | 25  |
-
-## KaTeX
-
-Some KaTeX diagrams to check in dark mode:
-
-$$
-\begin{CD}
-A @>a>> B \\
-@VbVV @AAcA \\
-C @= D
-\end{CD}
-$$
-
-$$\utilde{AB}$$
-
-## Mermaid
-
-<div class="mermaid">
-flowchart TB
-    c1-->a2
-    subgraph one
-    a1-->a2
-    end
-    subgraph two
-    b1-->b2
-    end
-    subgraph three
-    c1-->c2
-    end
-</div>