The HTML head element contains
<base> elements.It provides extra information( metadata) to the HTML document that is useful for displaying web pages into browser.
It provides different instructions to the browser about the character sets, style sheets, scripts so that browser understands the metadata and then displays web pages in the proper way.
Note: Please keep in mind that HTML
<head> elements provide metadata to the HTML document that is the most useful during displaying the web page into the browser.