Links
Links are hyperlinks present in the web page.
<a href="url">text to appear on link</a>
- targetattribute specifies where to open the link document. For example, open in a new tab.
<a href="url" target="_blank">text to appear on link</a>
- _self : Default. Opens the link document in the same window or tab
- _blank : Opens the link document in a new window or tab
- _parent : Opens the link document in the parent frame
- _top : Opens the link document in the full body of the window.
How to create Button as a Link
There are many ways to create a button which acts like a link
- 
Using forms
<form action="https://google.com">
    <input type="submit" value="Google Home page" />
</form>
- 
Using formaction attribute
<form>
  <button formaction="https://google.com">Google Home Page</button>
</form>
- 
Using Bootstrap CSS library
<a href="https://google.com" class="btn btn-primary">Google Home page</a>
- 
Using Javascript
<input type="button" onclick="location.href='https://google.com';" value="Google Home page  " />
<button onclick="location.href='https://google.com'" type="button"> Google Home Page</button>