Internal CSS are embedded STYLES which are defined with in the <style> element inside the Head of an HTML Script code.
The Embedded CSS Style Code must be written inside HEAD Section in a HTML CRIPT with the following structure. <html><head> Embed Your Style here… <head></html>
For Example, the following Code styles all Paragraphs, making the background blue and the writing color white.
<p>This Paragraph is styled with blue background and font is white </p>
<p>This Paragraph is styled with blue background and font is white</p>
The result of the above embedded styles is shown on the following image.