This tag is used to add hyperlinks to your web page.The link tag
<a> is used both for linking to external web pages and for linking to individual HTML documents on the same website. This link requires one attribute:
href - Tells where the browser should navigate to.
<a> for linking to an external web page.
<a href="https://code.org/">Visit Code.org!</a>
<a> for linking individual HTML documents on the same website
Using a link to refer to an outside source for more information
<html> <body> <h2>Katherine Johnson</h2> <p> Katherine Johnson was an American mathematician whose calculations as a NASA employee were critical to the success of the first U.S. missions to space. </p> <a href="https://www.nasa.gov/content/katherine-johnson-biography">Click Here to learn more about Katherine Johnson</a> </body> </html>
For more information, see http://www.w3schools.com/tags/tag_a.asp
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