What does the ">" (greater-than sign) CSS selector mean?
2010年7月12日 · 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 include a …
What does the "~" (tilde/squiggle/twiddle) CSS selector mean?
2012年5月28日 · The ~ selector is in fact the subsequent-sibling combinator (previously called general sibling combinator until 2017): The subsequent-sibling combinator is made of the "tilde" (U+007E, ~) …
What does an asterisk (*) do in a CSS selector? - Stack Overflow
2009年7月30日 · 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 …
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 you use .? …
In CSS what is the difference between "." and - Stack Overflow
2009年3月2日 · 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?
css selectors - CSS "and" and "or" - Stack Overflow
2010年5月9日 · Learn about CSS selectors, including how to use "and" and "or" for efficient styling on Stack Overflow.
CSS Child vs Descendant selectors - Stack Overflow
CSS Child vs Descendant selectors Asked 16 years, 4 months ago Modified 2 years, 5 months ago Viewed 166k times
Tailwind CSS v4 - Unknown at rule @plugin, @custom-variant, @theme ...
2025年3月17日 · 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-variant css …
css - How to force image resize and keep aspect ratio? - Stack Overflow
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 horizontally within the div. …
Can you use if/else conditions in CSS? - Stack Overflow
2009年7月15日 · Update Jul 2023: Modern CSS now has @container queries support for size and soon also style & state, and that basically means a native way for an if/else condition. Below is an …