css - Something like an If statement -

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in css, want like:

:root{       underline-all-h1-tags:true   }   /* it's not h1 tags, it's h1-tags-with-a-bunch-of-other-things". kiss reasons, we'll assume it's of them.*/  /* ... lots , lots of other stuff...*/  h1{       if(underline-all-h1-tags == true){          text-decoration: underline       } else {         text-decoration:none       } }

is there way this? know 

:root{h1-underline:underline}   h1{text-decoration:var(h1-underline)}

but trying make code readable me-in-10-years-when-i-have-totally-forgotten-how-to-css.

why not make use of cascading part of cascading style sheet?

h1{     text-decoration:none; }  .underline h1{     text-decoration:underline; }

applying class "underline" parent element same thing looks you're trying describe above.

you add or remove underline class js, or set statically on elements want affected.


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