how to use picture tag in html code example

Example 1: img tag html

<img src="peng_ting.jpg" alt="peng ting" width="500" height="600">

Example 2: picture html

<picture>
 <source srcset="mdn-logo-wide.png" media="(min-width: 600px)">
 <img src="mdn-logo-narrow.png" alt="MDN">
</picture>

Example 3: img tag

<img src="the source image's url" alt="the image's description">