HTML Address Tag

Example:

<!DOCTYPE html>
<html>
<body>

<address>
Mail to <a href="mailto:it.training12@gmail.com">Ravindu Kumara</a>.<br>
www.sl-it-help.blogspot.com<br>
Eplitiya<br>
Sri Lanka
</address>

</body>
</html>
Preview : 

Mail to Ravindu Kumara.
www.sl-it-help.blogspot.com
Eplitiya
Sri Lanka

HTML Images - Set Height and Width

Example1

<img src="img url" width="400" height="132">
Preview 1 

Example2
<img src="img url" width="400" height="400">
Preview 2

HTML iframe Tag

Example
<html>
<body>

<iframe src="http://sl-it-help.blogspot.com/">
  <p>Your browser does not support iframes.</p>
</iframe>

</body>
</html>
 Preview


HTML Button Tags

 Example
<html>
<body>

<button type="button" onclick="alert('Thank You')">Like</button>

</body>
</html>

Preview