Cascading Style Sheets (CSS) is used to format the HTML webpage layout.
Using CSS, you can change color, font family, size of the font, etc.
with CSS, you can easily make a plain HTML document into a stylish web page.
To do styling for HTML element you need to use the <style> attribute.
There are three methods to implement styles to an HTML document using CSS.
if you want to apply a style to the particular element, then HTML inline CSS will do it for you. you can apply styles to the individual element with <style> attribute.
if you want to apply style to the single HTML page, then HTML Internal CSS will do it for you. you can apply styles to the single HTML document with <style> </style> element within the <head> section.
if you want to apply a style to the multiple HTML documents at a time using one style sheet, then HTML external CSS will do it for you.
you can apply same styles to the multiple HTML documents with <link> element within the <head> section.
To link external styles to HTML documents you need to save .css file first.
In this example, we have used style.css as an external CSS file.