HTML Area Alt Attribute - W3Schools
Có thể bạn quan tâm
❮ HTML <area> tag
Example
Use the alt attribute to specify an alternate text for each area in the image map:
<map name="planetmap"> <area shape="rect" coords="0,0,82,126" href="sun.htm" alt="Sun"> <area shape="circle" coords="90,58,3" href="mercur.htm" alt="Mercury"> <area shape="circle" coords="124,58,8" href="venus.htm" alt="Venus"> </map> Try it Yourself »Definition and Usage
The alt attribute specifies an alternate text for an area, if the image cannot be displayed.
The alt attribute provides alternative information for an image if a user for some reason cannot view it (because of slow connection, an error in the src attribute, or if the user uses a screen reader).
The alt attribute is required if the href attribute is present.
Browser Support
| Attribute | |||||
|---|---|---|---|---|---|
| alt | Yes | Yes | Yes | Yes | Yes |
Syntax
<area alt="text">Attribute Values
| Value | Description |
|---|---|
| text | Specifies the alternate text for the area, if the image cannot be displayed |
Từ khóa » Html5 Alternative Text
-
HTML Img Alt Attribute - W3Schools
-
HTML5: Techniques For Providing Useful Text Alternatives - W3C
-
Image ALT Tag Tips For HTML - Accessibility At Penn State
-
Alt Attribute - Wikipedia
-
HTML5: Techniques For Providing Useful Text Alternatives
-
Alt Text: Why It's Important For Accessibility & SEO - Moz
-
Alternative Text - WebAIM
-
: The Image Embed Element - HTML - MDN Web Docs - Mozilla
-
Examination Of Alt Text Guidance In The HTML5 Draft
-
Requiring The Alt Attribute In HTML5 - Juicy Studio
-
HTML | Alt Attribute - GeeksforGeeks
-
What Is The Use Of Alternative Text In Image Mapping In HTML
-
HTML5 Video Element — Alternative Text - Stack Overflow
-
t - Web APIs | MDN