Atributo HTML <img> longdesc

❮ Tag HTML <img>

Exemplo

Vários exemplos de como usar o atributo longdesc:

<!-- The description is on the same page as the image -->
<img src="w3html.gif" alt="W3Schools.com" width="100" height="132" longdesc="#w3htmlExplained">

<!-- The description is in an external page -->
<img src="w3html.gif" alt="W3Schools.com" width="100" height="132" longdesc="w3html.txt">

<!-- The description is one of several within an external page -->
<img src="w3html.gif" alt="W3Schools.com" width="100" height="132" longdesc="http://example.com/desc#item3">

<!-- The description is included in a data:URI -->
<img src="w3html.gif" alt="W3Schools.com" width="100" height="132" longdesc="data:text/html;charset=utf-8;,%3C!DOCTYPE%20html%3E%3Chtml%3E%3Chead%3E%3Ctitle%3EDescription%20of%20the%20Logo%3C/title%3E%3C/head%3E%3Cbody%3E%3Cp%3ESome%20description%20goes%20here%3C/body%3E%3C/html%3E">

Definição e uso

O longdescatributo especifica um hiperlink para uma descrição detalhada de uma imagem.


Suporte ao navegador

Attribute
longdesc Not supported Not supported Not supported Not supported Not supported

Sintaxe

<img longdesc="string">

Valores de atributo

Value Description
string

A hyperlink to a detailed description of an image.

Possible values:

  • An id to another element
  • An absolute URL - points to another web site (like longdesc="http://www.example.com/description.txt")
  • A relative URL - points to a file within a web site (like longdesc="description.txt")

❮ Tag HTML <img>