HTML Paragraphs

Paragraphs are defined by <p> tags. This tag is associated with a horizontal line before and after the paragraph, so it is not needed to add it manually to this tag.
Example:
*Important note: do not forget to use end tag </p>. Although in most cases browsers interpret it correctly, future versions of HTML/XHTML will not accept it.
To start a new line without paragraph, <br /> tag is used.
Example:
*Important note: <br /> tag is an empty tag, and it does not require an end tag.
It is not always recognizable how future HTML will be displayed, depending upon various screen size and resolution, in full-size and resized windows. HTML does not allow changing the result by adding extra lines or spaces in webpage code. Browsers automatically remove extra lines and spaces. So it is important to remember that any amount of lines will be interpreted as one and any amount of spaces will count as one.
HTML attributes
HTML headings
HTML formatting
HTML Links