How to add HTML <source> size Attribute

sizes

Specifies image sizes for different page layouts

index.html

Example: HTML

<picture>
  <source srcset="https://horje.com/avatar.png 120w,
                  https://horje.com/avatar.png 193w,
                  https://horje.com/avatar.png 278w"
          sizes="(max-width: 710px) 120px,
                 (max-width: 991px) 193px,
                 278px">
  
  <img src="https://horje.com/avatar.png" alt="Gust">
</picture>

Output should be:

Type:	html
Category:	Web Tutorial
Sub Category:	HTML Tag
Uploaded by:	Admin