Rocket Validator integrates the W3C Validator HTML checker into an automated web crawler.
HTML issues tagged as deprecated.
projection media type was deprecated in Media Queries 4.
Media types describe the general category of a device, for example
CSS 2.1 and Media Queries 3 defined several additional media types (
aural), but they were deprecated in Media Queries 4 and shouldn’t be used.
25,000 HTML checks per month. Fully automated.
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