Brief Introduction of MarkDown

It is common that we have to write a passage, but so many times
we are in the troubles of nice arrangement of style.

MarkDown is a way to solve the problem, what we need is only simple
hints. Let’s begin the study of MarkDown.

General Description

1. if there is a block element, we need two blanks before and after the
   contents.

2. if there is only a inline element, we need just write one by one.

3. Indent. Indent have meanning of these: <pre></pre> or child element.

4. if the sign has meaning in md , we have to use \ to eacape.

Block Element

1. passage <p></p>
   According to general rule we only need two blanks before and after contents.

2. line break <br />
   We can break the line personnally. Just two or more spaces at the end of line

3. horizontal tags <hr />
   we put three or more signs as ----- or _____, but we need blanks

4. blockquote <blockquote></blockquote>
   we need > or >> according structure. For example:

    >  This is demo of blockquote        
    >
    >> This is block inside the outer blockquote
    >
    >1. item1
    >   
    >   * unordered list 
   

5. header <h1> <h2> <h3> <h4> <h5> <h6>
   we need # for <h1> and similar for the others.

6. ordered list <ol>
   we use just number. if we do need a number like 12. 32, we need \
   to escape like 12\. 32.

7. unorder list <ul>
   we can use + or - or *;

8. code block <pre></pre>
   Indent every line of the block by at least 4 spaces or 1 tab.

9. fenced code block
   As I use in the article, just use ``content`` or ```content```

10. table <table></table>

    |name |age  |address|
    |:---:|:---:| :---: |   // : means way of alignment
    |lee  | 25  | Wuhan |
    

Inline Elements

1. ordinary link <a></a>
   we use like this [link text](url 'optional title') or [link text][id] [id]: url "optional text"

2. image link ‘‘
   Same as orinary link except we use ! link ![alt text](url 'optional text')

3. just url
   we just use as <http://mzlee.site> or <mailto: nucliliangmin@163.com>

4. emphysis <em></em>or strong <strong></strong>
   one *content* means <em>content</em>, two means the last.

5. strikethrough <del></del>
   we use ~~content~~, contnet

html tag

sure, we can use html tags as we usually. There is a problem : MarkDown is useless
when in block elements.