A large sized simple button that enlarges the size of all text content on page to a pre determined size - ideally 16pt/21px.
Shipped—Natively customize background videos with pause/play button
I realise there are widgets/plug ins for this but it would be easier for site owners to take responsibility for their online content and make necessary provisions than to expect users to know how to install one of these on their browser. Some people don't even know they need the larger font until they see how much easier it is - having this option would be a more pleasant user experience.
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