How to indent a few lines in Markdown markup?

In Markdown, directly implementing traditional text indentation, such as first-line indentation for paragraphs, is not natively supported; however, it can be emulated using several techniques.

1. Using HTML Tags: Markdown supports the direct inclusion of HTML code within its text, allowing you to use   (non-breaking space) or <pre> tags to create indentation.

   Example:

   markdown
   Normal text line
       This line has four-space indentation at the beginning.

   Display result: Normal text line     This line has four-space indentation at the beginning.

2. Using Code Blocks: If you need to preserve multiple whitespace characters, using code blocks is a reliable way to maintain the original spacing and formatting.

   Example:

   markdown
   

   This line is indented.

   shell
   

   Display result:

   shell
      This line is indented.

3. Using Blockquotes: Although this is not a native indentation method, blockquotes can be used to visually indent text.

   Example:

   markdown
   > This is a blockquote, which can be used to visually indent text.

   Display result:

   This is a blockquote, which can be used to visually indent text.

The above are several common approaches for implementing text indentation in Markdown. When applying them, the choice of method depends on the specific context and personal preference.