grid 960 using less.js

grid960.less

/*
  rewriten to less.js by Sergej Jevsejev
  @date 2012 07 14
  @webpage http://sjevsejev.blogspot.com

  960 Grid System ~ Core CSS.
  Learn more ~ http://960.gs/

  Licensed under GPL and MIT.
*/

/*
  Forces backgrounds to span full width,
  even if there is horizontal scrolling.
  Increase this if your layout is wider.

  Note: IE6 works fine without this fix.
*/

// settings
@columns: 16;
@bodyWidth: 960px;
@columnMargin: 10px;

// vars
@columnWidth: ( @bodyWidth - @columns * @columnMargin * 2 ) / @columns;

body {
    min-width: @bodyWidth;
}

//Container
(~".container_@{columns}") {
    margin-right: auto;
    margin-left: auto;
    width: @bodyWidth;
}

.gridGlobal (@index) when (@index > 0) {
    (~".grid_@{index}") {
        display: inline;
        float: right;
        margin-right: @columnMargin;
        margin-left: @columnMargin;
    }

    .gridGlobal(@index - 1);
}
.gridGlobal (0) {}
.gridGlobal (@columns);

.pushPull (@index) when (@index > 0) {
    (~".push_@{index}, .pull_@{index}") {
        position: relative;
    }

    @width: @bodyWidth - (@columns - @index) * (@columnWidth + @columnMargin * 2);

// Prefix Extra Space >> Columns
    (~".container_@{columns}, .prefix_@{index}") {
        padding-right: @width;
    }

// Suffix Extra Space >> Columns
    (~".container_@{columns}, .suffix_@{index}") {
        padding-left: @width;
    }

// Push Space >> Columns
    (~".container_@{columns}, .push_@{index}") {
        right: @width;
    }

// Pull Space >> Columns
    (~".container_@{columns}, .pull_@{index}") {
        right: -@width;
    }

    .pushPull(@index - 1);
}
.pushPull (0) {}
.pushPull (@columns - 1);

// Grid >> Children (Alpha ~ First, Omega ~ Last)
.alpha { margin-right: 0; }
.omega { margin-left: 0; }

.gridColumns (@index) when (@index > 0) {
    // Grid >> Columns
    (~".container_@{columns} .grid_@{index}") {
        width: @bodyWidth - 2*@columnMargin - (@columns - @index) * (@columnWidth + 2*@columnMargin);
    }

    .gridColumns(@index - 1);
}
.gridColumns (0) {}
.gridColumns (@columns);

/* `Clear Floated Elements
----------------------------------------------------------------------------------------------------*/

/* http://sonspring.com/journal/clearing-floats */

.clear {
    clear: both;
    display: block;
    overflow: hidden;
    visibility: hidden;
    width: 0;
    height: 0;
}

/* http://www.yuiblog.com/blog/2010/09/27/clearfix-reloaded-overflowhidden-demystified */

.clearfix:before,
.clearfix:after,
(~".container_@{columns}:before"),
(~".container_@{columns}:after") {
    content: '.';
    display: block;
    overflow: hidden;
    visibility: hidden;
    font-size: 0;
    line-height: 0;
    width: 0;
    height: 0;
}

.clearfix:after,
(~".container_@{columns}:after"){
    clear: both;
}

/*
  The following zoom:1 rule is specifically for IE6 + IE7.
  Move to separate stylesheet if invalid CSS is a problem.
*/

.clearfix,
(~".container_@{columns}") {
    zoom: 1;
}