In HTML5, is it ok to use a strong tag within an em tag?
问题 I'm currently marking up some user alerts as follows <em>You are in danger of exceeding your <strong>40GB</strong> download limit</em> I've found other answers suggesting that, although valid html, this is not semantically valid. But is it really not OK to nest em/strong tags in all instances? The above example seems to me to be a perfectly reasonable use - to specifically emphasise a subsection of something that's already emphasised. But can screen readers interpret this as it's meant to be