how to set image size on html code example

Example 1: html img size

<p><img src="image/example.jpg" alt="Example1" width="193" height="130"> (width:193px, height:130px)</p>

<p><img src="image/example.jpg" alt="Example2" width="96" height="65"> (width:96px, height:65px)</p>

<p><img src="image/example.jpg" alt="Example3" width="100%" height="130"> (width:100%, height:130px)</p>

Example 2: how to change the height of an image in html

<img src="smiley.gif" alt="Smiley face" height="42" width="42">