E-mail Links In HTML
The <a> element along with the href attribute can also be used to send email. You prefix mailto: to the email address of the recipient after the href attribute. When you click the email link, the default email program opens a new message displaying the recipient's address in the To: box. Optionally, you can also add a subject line as shown in the following example. Spaces between words should be replaced by %20 to ensure that the browser will display the text properly.
Learn the HTML5 language in this tutorial series. These tutorials are designed for new programmers to provide them thorough knowledge of full stack web development.