Base Tag
In HTML, the 'base' tag is used to set a base URL for all relative URLs within a document. This means that any relative URL (like a link or a reference to an image or a script) will be interpreted relative to this base URL. The 'base' tag is particularly useful in situations where a webpage contains numerous relative links, but the page is meant to be viewed from a different URL than the one from which it was served. This tag helps maintain consistent link structures, especially useful in complex web applications or when reusing content across different parts of a website.