html text alignment

Centered heading

This is a paragraph.

html text size

This is a heading

This is a paragraph.

html text font

This is a heading

This is a paragraph.

html text color

This is a heading

This is a paragraph.

html background color

This is a heading

This is a paragraph.

html styles

I am Red

I am Blue

how to control the line break and spaces with pre tag

The pre tag preserves both spaces and line breaks:

   My Bonnie lies over the ocean.

   My Bonnie lies over the sea.

   My Bonnie lies over the ocean.
   
   Oh, bring back my Bonnie to me.