I like WebAIM's tutorials (although it can be a lot of information and a bit overwhelming sometimes). Their accessibility checker is really simple to use and if it finds any issue, it will highlight it, show a short description of why it is an issue, and link to articles and guidelines related to it.
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I like WebAIM's tutorials (although it can be a lot of information and a bit overwhelming sometimes). Their accessibility checker is really simple to use and if it finds any issue, it will highlight it, show a short description of why it is an issue, and link to articles and guidelines related to it.