<img/> is an empty tag & used to display an image on the HTML document(Webpage).
Following are the attributes in <img>
src: Specify the path/location of an Image.
height: To set image height.
width: To set image width.
alt: To add an alternate text when image is not displayed.
If height & width is not specified, will show the image with its original height & width.
Example:
<html>
<body>
<img src="Image_path" height="100" width="100" />
</body>
</html>
Image as Link
<a href="your_page.html">
<img src="Image_path" height="100" width="100" />
</a>