Sass calculate percent minus px

Question

I want to be able to do the following   height  25  - 5px    Obviously when I do that I get the error    Incompatible units   px  and

User · Answer

Just add the percentage value into a variable and use    variable  for example   twentyFivePercent 25    selector       height  calc    twentyFivePercent  - 5px

User · Answer

Sorry for reviving old thread - Compass  stretch with an  after pseudo-selector might suit your purpose - eg  if you want a div to fill width from left to  50    10px  of screen you could use  in SASS indented syntax     example     background  red      stretch 0  -10px  0  0       amp  after          stretch 0  0  0  50           content              background  blue   The  after element fills 50  to the right of  example  leaving 50  available for  example s width   then  example is stretched to that width plus 10px

User · Answer

There is a calc function in both SCSS  compile-time  and CSS  run-time   You re likely invoking the former instead of the latter   For obvious reasons mixing units won t work compile-time  but will at run-time   You can force the latter by using unquote  a SCSS function    selector   height  unquote  -webkit-calc 100  - 40px

User · Answer

IF you know the width of the container  you could do like this    container   width    200 px    element     width     0 25   200  - 5 px   I m aware that in many cases  container could have a relative width  Then this wouldn t work

User · Answer

Sass cannot perform arithmetic on values that cannot be converted from one unit to the next   Sass has no way of knowing exactly how wide  100   is in terms of pixels or any other unit   That s something only the browser knows   You need to use calc   instead   Check browser compatibility on Can I use      foo       height  calc 25  - 5px       If your values are in variables  you may need to use interpolation turn them into strings  otherwise Sass just tries to perform arithmetic     a  25    b  5px    foo     width  calc    a  -    b

User · Answer

var 25    foo 5px   selector       height unquote  calc     var  -    foo

[sass] Sass calculate percent minus px

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