tag specifies an inline frame. An inline frame is used to embed another document within the current HTML document. Attribute Value Description height pixels Specifies the height of the embedded content src URL Specifies the address of the external file to embed type media_type Specifies the media type of the embedded content width pixels Specifies the width of the embedded content What is HTML or Embed Code? In simple terms it's a code that adds a browser plugin or widget to your page.