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How to make CSS calc() function work on Custom CSS editor?

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Hi,

I have a custom html list whose items I try to show in three columns with flexbox. List items have padding to add room for item background.

li {
  flex: 0 0 calc(33% - 66px);
  padding: 0 16px 0 50px;
  background:  url('check.png') no-repeat left top;
}

The problem is that squarespace has some kind of preprocessor which converts calc() to this: (style copied from browsers inspector)

flex: 0 0 calc(-33%);

How should I write calc() to keep it in the desired format?

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  • Solution

@Jfer00 This is because the 'Custom CSS' panel is actually the 'Custom LESS' panel 😁.

Any math operations in brackets are calculated first (33-66=-33) and then the CSS parsed. You can avoid this by using escaping it like this:

  flex: 0 0 calc(~"33% - 66px");

 

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