Building an Accessible Photo Gallery is a practical project for learners who know basic HTML, CSS, and JavaScript and want to turn those skills into a complete browsing experience. Build a local photo exhibition whose thumbnails, full-size images, titles, and descriptions stay connected as visitors browse.
The Guided Labs develop the gallery layout and detailed viewer step by step. An independent Challenge asks you to apply the same techniques to another exhibition, including photographs with matching titles, long titles, and different proportions. Each lab starts with its own prepared files.
What You Will Learn
After completing this course, you will be able to:
- connect each stable photo ID to the correct thumbnail, full-size image, alternative text, and caption;
- build a responsive gallery with meaningful HTML and visible keyboard focus;
- use the native
dialogelement to show a photograph and keep its image, title, and description in sync during navigation; - make first and last photo boundaries clear, close the viewer with
Esc, and return focus to the card that opened it; - show a readable image-loading failure without silently substituting another photograph, and recover from an incorrect file path.
Who This Course Is For
This course is for learners ready to combine individual web exercises into a usable photo exhibition.
Prerequisites: Familiarity with HTML elements, basic CSS layout, and JavaScript objects, functions, DOM manipulation, and events. You should be able to open and save project files. The Guided Labs introduce the gallery-specific semantics, native dialog behavior, and focus handling. React is not required.
Learning environment: LabEx provides prepared WebIDE, Terminal and Gallery entries and local images. In WebIDE, you read existing HTML, CSS and JavaScript, predict their behavior, and save focused edits. In Gallery, you observe the real website and test keyboard interaction. The gallery’s interface labels remain in English.
Frequently Asked Questions
Will I write the gallery code?
Yes. You complete the layout and browser behavior in the prepared project, then use the resulting gallery with both a mouse and a keyboard.
Do I need to upload photographs or install a framework?
No. Local image assets and the learning environment are prepared. The project uses HTML, CSS, and browser JavaScript without React or an image-upload service.
Does completing the course certify accessibility?
No. You practice specific image, keyboard, and focus behaviors. A complete accessibility assessment covers more than these exercises.
