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  1. What does the ">" (greater-than sign) CSS selector mean?

    Jul 12, 2010 · 63 > (greater-than sign) is a CSS Combinator (Combine + Selector). A CSS selector can contain more than one simple selector. Between the simple selectors, we can …

  2. What does the "~" (tilde/squiggle/twiddle) CSS selector mean?

    May 28, 2012 · The ~ selector is in fact the subsequent-sibling combinator (previously called general sibling combinator until 2017): The subsequent-sibling combinator is made of the …

  3. In CSS what is the difference between "." and - Stack Overflow

    Mar 2, 2009 · What is the difference between # and . when declaring a set of styles for an element and what are the semantics that come into play when deciding which one to use?

  4. What does an asterisk (*) do in a CSS selector? - Stack Overflow

    Jul 30, 2009 · The CSS that you referenced is very useful to a web-designer for debugging page layout problems. I often drop it into the page temporarily so I can see the size of all the page …

  5. What is the purpose of the '@' symbol in CSS? - Stack Overflow

    @font-face { /* CSS HERE */ } So is this @ symbol something new in CSS3, or something old that I've somehow overlooked? Is this something like where with an ID you use #, and with a class …

  6. css selectors - CSS "and" and "or" - Stack Overflow

    May 9, 2010 · Learn about CSS selectors, including how to use "and" and "or" for efficient styling on Stack Overflow.

  7. css selectors - What does "*" mean in CSS? - Stack Overflow

    * { margin: 0; padding: 0; } It is odd, as removing that block in chrome web developer tools doesn't affect the layout of the page. What does this code mean, and when is it used and why?

  8. Tailwind CSS v4 - Unknown at rule @plugin, @custom-variant, …

    Mar 17, 2025 · I'm using Tailwind CSS v4 in my Next.js project and getting the following errors in globals.css: Unknown at rule @plugin css (unknownAtRules) Unknown at rule @custom …

  9. css - How to force image resize and keep aspect ratio? - Stack …

    background-position: center; } Now you can just set your div size to whatever you want and not only will the image keep its aspect ratio it will also be centralized both vertically and …

  10. html - Select elements by attribute in CSS - Stack Overflow

    Mar 16, 2011 · Is it possible to select elements in CSS by their HTML5 data attributes (for example, data-role)?