Check out example codes for "html for an image with a link". It will help you in understanding the concepts better.

Code Example 1

<html>
<body>

<h2>Image Links</h2>

<p>The image is a link. You can click on it.</p>

<a href="default.asp">
  <img src="smiley.gif" alt="HTML tutorial" style="width:42px;height:42px;border:0">
</a>

<p>We have added "border:0" to prevent IE9 (and earlier) from displaying a border around the image.</p>

</body>
</html>

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