Markdown defines a few levels of headings. A heading element implies all the font changes, paragraph breaks before and after, and any white space necessary to render the heading. For example:

This is a top level heading

# This is a top level heading

Use header elements when you want to make the hierarchical structure of a document explicit. This is needed as header elements themselves only contain the text of the header, and do not imply any structural division of documents into sections. Header elements have the same content model as paragraphs, that is text and character level markup, such as character emphasis, inline images, form fields and math

Second level heading

## Second level heading

Lorem ipsum is a pseudo-Latin text used in web design, typography, layout, and printing in place of English to emphasise design elements over content. It’s also called placeholder (or filler) text

h3, h4, h5 and h6 have the same style

### h3, h4, h5 and h6 have the same style

Less is more and simplicity is the key. Emphasis, aka italics, with asterisks or underscores. Strong emphasis, aka bold, with asterisks or underscores. Combined emphasis with asterisks and underscores. Strikethrough uses two tildes. Scratch this.

An unordered list of famous Romanians

• Constantin Brâncuși
• Tristan Tzara
• Mircea Eliade
• George Emil Palade

An ordered list of Romanian cities

1. Bucharest
2. Cluj
3. Timișoara
4. Iași
5. Buzău

Here-s an image:

And a tod-o list:

• This is a complete item
• This is an incomplete item
• This is also an incomplete item