CSS, or Cascading Style Sheets, is used in conjunction with HTML to control the layout and design of a webpage. CSS can be used to define the color, font, and spacing of elements on a webpage.
CSS can be added to an HTML document in several ways. One common method is to include a link to a separate CSS file in the head of the HTML document:
<head>
<link rel="stylesheet" href="style.css">
</head>
In this example, the link element is used to link to a separate CSS file called "style.css".
