Titles

H1 - heading

H2 - heading

H3 - heading

H4 - heading

Paragraph

I wandered lonely as a cloud

That floats on high o’er vales and hills,

When all at once I saw a crowd,

A host, of golden daffodils;

Beside the lake, beneath the trees,

Fluttering and dancing in the breeze.

Lists

Ordered list

1. Firstly
2. Secondly
3. Thirdly

Unordered list

• Chapter
  • Setcion
    • Paragraph

Task list

• TODO
• Completed
• Defeat COVID-19
  • Vaccine production
  • Economic recovery
  • People smile again

Description list

Sun

the star around which the earth orbits

Moon

the natural satellite of the earth, visible by reflected light from the sun

Block Quote

This line to shows the Block Quote.

Tables

Links

http://127.0.0.1:4000

Footnote

Click the hook will locate the footnote¹, and here is another footnote².

Images

• Default (with caption)

Full screen width and center alignment

• Specify width

400px image width

• Shadow

shadow effect (visible in light mode)

• Left aligned

• Float to left

  “A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space.”

• Float to right

  “A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space. A repetitive and meaningless text is used to fill the space.”

Mermaid SVG

 gantt
  title  Adding GANTT diagram functionality to mermaid
  apple :a, 2017-07-20, 1w
  banana :crit, b, 2017-07-23, 1d
  cherry :active, c, after b a, 1d

Mathematics

The mathematics powered by MathJax:

When $a \ne 0$, there are two solutions to $ax^2 + bx + c = 0$ and they are

Inline code

This is an example of Inline Code.

Code block

Common

1

This is a common code snippet, without syntax highlight and line number.

Specific Languages

Console

1
2
3

$ env |grep SHELL
SHELL=/usr/local/bin/bash
PYENV_SHELL=bash

Ruby

1
2
3
4

def sum_eq_n?(arr, n)
  return true if arr.empty? && n == 0
  arr.product(arr).reject { |a,b| a == b }.any? { |a,b| a + b == n }
end

Shell

1
2
3
4

if [ $? -ne 0 ]; then
    echo "The command was not successful.";
    #do the needful / exit
fi;

Liquid

1
2
3

{% if product.title contains 'Pack' %}
  This product's title contains the word Pack.
{% endif %}

Java

1
2
3
4
5
6

private void writeObject(java.io.ObjectOutputStream s)
  throws java.io.IOException {
  // Write out any hidden serialization magic
  s.defaultWriteObject();
  for (E e: map.keySet()) s.writeObject(e);
}

Reverse Footnote