Web development
Text Alternatives and Media
Updated Oct 28, 2026
Informative images need alternative text that conveys their purpose or content. Decorative images can use an empty alt attribute. Provide captions for prerecorded spoken video and consider transcripts
What you’ll learn
Understand and practise text alternatives and media.
Explanation
Informative images need alternative text that conveys their purpose or content. Decorative images can use an empty alt attribute. Provide captions for prerecorded spoken video and consider transcripts for audio, according to the content and audience.
រូបភាពផ្ដល់ព័ត៌មានត្រូវមាន alt text ដែលពណ៌នាគោលបំណង។ រូបភាពតុបតែងអាចប្រើ alt ទទេ។ ផ្ដល់ចំណងជើងអត្ថបទសម្រាប់វីដេអូ និងពិចារណា transcript សម្រាប់សំឡេង។
Example
An image link to the home page might use alt="Home".
Practice
What alt text is appropriate for a purely decorative image?
Answer and explanation
Show answer / បង្ហាញចម្លើយ
Use an empty alt attribute so it can be skipped by assistive technology.
Quick recap
Informative images need alternative text that conveys their purpose or content.