What is CSS? Understanding the coding language that styles a webpage beyond plain text and photos

CSS is a programming language that lets you customize the color, font, and layout of an HTML-coded website.
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Attackers can hide 'external sender' email warnings with HTML and CSS

The "external sender" warnings shown to email recipients by clients like Microsoft Outlook can be hidden by the sender, as demonstrated by a researcher. Turns out, all it takes for attackers to alter ...