I can has() new CSS Selector?!

June 13, 2022, 10 a.m. (5 months, 3 weeks ago)
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In this Hasty Treat, Scott and Wes talk about new CSS selectors :has, :where, and :is.

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Show Notes

 // Finds all p tags that have an anchor tag as a child p:has(a) {} // Can find children of parent as well // Finds the button of a paragraph that contains an a tag  p:has(a) button {} // Finds all p tags that don't have an anchor tag as a child p:not(:has(a)) {} // Finds all p tags where a is a direct sibling p:has(> a) {} // would find 

Hi

// would not find

hi

In the past we would write

 header p:hover, main p:hover, footer p:hover {   color: red;   cursor: pointer; }  

:where is essentially a short had for making this easier considering the 2nd half of these selectors is the same. Will make your css dryer

 :where(header, main, footer) p:hover {}  

Also super handy in avoiding css blocks being ignored for unsupported features.

 // Doesn't work div:has(p), div:some_new_selector(p)  // Will still work for :has if has is supported :where(div:has(p), div:some_new_selector(p))  

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