KNACSS/less/_00-config.less

// Config file and project variables

// font sizes
@base-font-size : 14px; // if "14px" then 1em = 14px
@line-height    : 1.5; // equiv line-height 1.5
@h1-size        : 3.2rem; // equiv "32px"
@h2-size        : 2.8rem; // equiv "28px"
@h3-size        : 2.4rem; // equiv "24px"
@h4-size        : 2.0rem; // equiv "20px"
@h5-size        : 1.8rem; // equiv "18px"
@h6-size        : 1.6rem; // equiv "16px"

// font stacks
@font-stack-common      : Helvetica, Arial, sans-serif; // common font
@font-stack-headings    : Helvetica, Arial, sans-serif; // headings font
@font-stack-monospace   : Consolas, "DejaVu Sans Mono", Courier, monospace; // monospace font
@font-stack-universal   : FreeSans, Arimo, "Droid Sans", Helvetica, Arial, sans-serif; // universal stack

// font colors
@base-color             : #000; // text color on body and content
@primary-color          : #000; // text color on primary elements
@secondary-color        : #000; // text color on secondary elements
@headings-color         : #000; // text color on headings
@base-color-link        : #333; // base links color
@base-color-link-hover  : #000; // base hovered/focused links color

// backgrounds
@base-background        : #fff; // body background color
@primary-background     : #fff; // primary elements background color
@secondary-background   : #fff; // secondary elements background color

// spacings (choose unit you prefer)
@tiny-value             : 5px; // tiny value for margins / paddings
@small-value            : 10px; // small value for margins / paddings
@medium-value           : 20px; // medium value for margins / paddings
@large-value            : 40px; // large value for margins / paddings
@extra-large-value      : 80px; // extra large value for margins / paddings
@ultra-large-value      : 160px; // ultra large value for margins / paddings

// breakpoints (choose unit you prefer)
@tiny-screen            : 480px; // tiny screens media query (less than 480px)
@small-screen           : 768px; // screens between 481px and 768px
@medium-screen          : 1024px; // screens between 769px and 1024px
@large-screen           : 1280px; // screens between 1025px and 1280px
@extra-large-screen     : 1600px; // screens between 1281px and 1600px
@ultra-large-screen     : 1920px; // ultra large screens

// misc (choose unit you prefer)
@gutter : 20px; // gutter value for grid layouts. Unit can be: %, px, em, rem

// LESS mixins : don't touch or you'll be banned ;)
// px to em/rem
.rem(@size, @bf: @base-font-size){
	@rem: @size / 10;
	font-size: unit(round(@base-font-size * @size /10), px);
	font-size: unit(@rem, rem);
}
.em(@size, @bf: @base-font-size){
	@em: @size / @bf;
	font-size: unit(round(@em,2), em);
}
.px(@size, @bf: @base-font-size){
	@px: @size * @bf;
	font-size: unit(round(@px,2), px);
}