In HTML, tags are opened with <> and closed with </>. However, there are tags like input, image, br, and hr. These tags are opened but they do not have closing tags.
There are multiple tags in HTML. Some of these are <hr>, <center>, <abbr>, <blockquote>, <mark>, <details>, <datalist> and <button>.
Definitions of HTML tags
<hr> allows us to draw a horizontal line.
<center> allows us to align the text in the center.
<abbr> used for making abbreviations.
<blockquote> used for making quotations.
<canvas> used for creating graphics.
<mark> defines labeled texts.
<details> allows us to define extensible and hidden texts.
<datalist> defines extensible list for input tag.
<button> creates a button.