Good day. I have seen it not once in the examples when programming elements like For and others are used in CSS ... Who knows where to read about them?
Thanks for any info.

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    Google preprocessors SASS (SCSS) / Stylus - andreyqin
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    + LESS to the previous answer - etki
  • @Etki, for sure! For some reason I thought that there are no cycles in LESS. - andreyqin
  • Thanks, but what is it all about? Does this framework compile somehow? What is the relevance of this? I just somehow watched the demo animation ... And I was surprised, I thought that I didn't know CSS =) - Node_pro
  • > What is the relevance of this? Very high. Imagine you typeset an unfinished template. In the template there is a palette with which color variations are used: a bit darker, a little bit lighter. In the final you have css'nik with three dozen different hex. If after this dramatic changes occur in the template, it will be difficult to correct the situation. If you use a preprocessor, then these colors can be set variables (and shades - calculate) during the compilation of css. > I just somehow watched the demo animation ... This is transient, there are no cycles. - etki

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