Accessible names for image buttons (image-button)
Image buttons must have non-empty accessible names, using alt, aria-label, or aria-labelledby attributes.
Note: An empty alt attribute on an <input type="image"> means no accessible name is provided. Use a meaningful alt, or use aria-label or aria-labelledby.
Empty alt:
This <input type="image"> element has an empty alt attribute and no other naming attributes. Its accessible name defaults to "Submit Query", which is not meaningful.