Rocket Validator integrates the W3C Validator HTML checker into an automated web crawler.
HTML issues tagged as deprecated.
The projection media type was deprecated in Media Queries 4.
Media types describe the general category of a device, for example screen, print and speech.
CSS 2.1 and Media Queries 3 defined several additional media types (tty, tv, projection, handheld, braille, embossed, and aural), but they were deprecated in Media Queries 4 and shouldn’t be used.
The deprecated property longdesc on img elements was used in HTML4 to specify the URL of a text or HTML file which contained a long-form description of the image. This could be used to provide optional added details beyond the short description provided in the title or alt attributes.
Here’s an example from HTML4:
<img src="cat.jpg" alt="Smiling Cat" longdesc="image-descriptions/smiling-cat.html" />
This, however, is no longer valid in HTML5 and can be converted to the following instead:
<a href="image-descriptions/smiling-cat.html"> <img src="cat.jpg" alt="Smiling Cat" /> </a>
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