<desc> - SVG: Scalable Vector Graphics 编辑

The <desc> element provides an accessible, long-text description of any SVG container element or graphics element.

Text in a <desc> element is not rendered as part of the graphic. If the element can be described by visible text, it is possible to reference that text with the aria-describedby attribute. If aria-describedby is used, it will take precedence over <desc>. 

The hidden text of a <desc> element can also be concatenated with the visible text of other elements using multiple IDs in an aria-describedby value. In that case, the <desc> element must provide an ID for reference.

html,body,svg { height:100% }

<svg viewBox="0 0 10 10" xmlns="http://www.w3.org/2000/svg">
  <circle cx="5" cy="5" r="4">
    <desc>
      I'm a circle and that description is here to
      demonstrate how I can be described, but is it
      really necessary to describe a simple circle
      like me?
    </desc>
  </circle>
</svg>

Attributes

This element only includes global attributes

Global attributes

Core Attributes

Most notably: id

Styling Attributes

class, style

Event Attributes

Global event attributes, Document element event attributes

Usage notes

Specifications

Browser compatibility

BCD tables only load in the browser

See also

• <title>