Most codes you find do not allow you to ad just the size of the image. This one can. Simply tweak the parameters until they suit you i.e height and width.
It even works on browsers that block images. When a browser blocks an image the taxt after
alt=" Text Here" will appear
The following code provides the image link below
full image URL
Text in red is your the intended site. Text in green is the URL of the image you want to use as the link. Blue text is what appear if the browser blocks image so that the person can still see your link.
Try it out
The text box used above can easily be generated using the code below