You can use the style attribute to specify the width and height of an image.
The values are specified in pixels (use px after the value):
Example
<img src="html5.gif" alt="HTML5...
It is common to use images as links:
Example
<a href="default.asp"> <img src="smiley.gif" alt="HTML tutorial" style="width:42px;height:42px;border:0;"></a>
Try...