CSS (Cascading Style Sheets) is a stylesheet language used to describe the presentation (look and feel) of a web page written in HTML. While HTML provides the structure and content, CSS is used to control layout, colors, fonts, spacing, alignment, and visual effects of web elements.
The <link> tag is the standard and recommended way to link an external stylesheet to an HTML document.
<link rel="stylesheet" href="style.css">
rel="stylesheet": Specifies the relationship between the current document and the linked document. Here, it indicates that the linked file is a stylesheet.href="style.css": Specifies the path to the external CSS file.