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Editorial Team
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Asked: 2026-05-28T05:33:57+00:00

I am trying to figure out Joni Korpi’s Frameless CSS frameless grid ( http://framelessgrid.com/

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I am trying to figure out Joni Korpi’s Frameless CSS frameless grid (http://framelessgrid.com/) and I’m having a hard time reading the .less file he has. I have a basic understanding that LESS uses variables so I know column = 48 and gutter = 24 and that’s about it.

Does 1cols = 1 * (48 + 24) – 24)/ 12 ?

What I don’t understand is @1col: @1cols; and .width (@cols:1) {
width: (@cols * (@column + @gutter) - @gutter) / @em;
}

Can anybody help?

https://github.com/jonikorpi/Frameless/blob/master/frameless.less

@font-size: 16;         // Your base font-size in pixels
@em: @font-size*1em;    // Shorthand for outputting ems, e.g. "12/@em"

@column: 48;    // The column-width of your grid in pixels
@gutter: 24;    // The gutter-width of your grid in pixels


//
// Column-widths in variables, in ems
//

 @1cols: ( 1 * (@column + @gutter) - @gutter) / @em; @1col: @1cols;
 @2cols: ( 2 * (@column + @gutter) - @gutter) / @em;
 @3cols: ( 3 * (@column + @gutter) - @gutter) / @em;
 @4cols: ( 4 * (@column + @gutter) - @gutter) / @em;
 @5cols: ( 5 * (@column + @gutter) - @gutter) / @em;
 @6cols: ( 6 * (@column + @gutter) - @gutter) / @em;
 @7cols: ( 7 * (@column + @gutter) - @gutter) / @em;
 @8cols: ( 8 * (@column + @gutter) - @gutter) / @em;
 @9cols: ( 9 * (@column + @gutter) - @gutter) / @em;
@10cols: (10 * (@column + @gutter) - @gutter) / @em;
@11cols: (11 * (@column + @gutter) - @gutter) / @em;
@12cols: (12 * (@column + @gutter) - @gutter) / @em;
@13cols: (13 * (@column + @gutter) - @gutter) / @em;
@14cols: (14 * (@column + @gutter) - @gutter) / @em;
@15cols: (15 * (@column + @gutter) - @gutter) / @em;
@16cols: (16 * (@column + @gutter) - @gutter) / @em;


//
// Column-widths in a function, in ems
//

.width (@cols:1) {
width: (@cols * (@column + @gutter) - @gutter) / @em;
}
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1 Answer

  1. Editorial Team

    @1cols etc are just variable names. Variable names in less are allowed to start with numbers.

    @1col: @1cols;

    That’s just making the saying that variable @1col equals the variable @1cols set earlier. Presumably, “1col” because 1 is singular, but the others are plural, so it just gives you the option of using either @1col or @1cols both of them being the same value.

    @1cols: ( 1 * (@column + @gutter) - @gutter) / @em;

    That’s just math. If you want a section that’s 3 columns width, that’s 3 times the (column width + gutter width) minus one gutter.

    .width (@cols:1) {
width: (@cols * (@column + @gutter) - @gutter) / @em;
}

    That’s a mixin function that takes a variable number of columns with a default parameter of 1. You can use it like this:

    .my-class{
   .width(3);
}
/* these two are identical */
.my-class{
   width: @3cols;
}

    The benefit of the first method is that you can replace 3 with a variable so you can use it elsewhere.

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