Build custom web-framework (like 960) with Sass (Scss):
$width: 960px;
$gutter: 20px;
$columns: 12;
$column_width: $width / $columns;
body {
min-width: $width;
}
.container {
margin-left: auto;
margin-right: auto;
width: $width;
}
.grid {
display: inline;
float: left;
margin-left: $gutter / 2;
margin-right: $gutter / 2;
}
@for $i from 1 through $columns { // 'to' (without last item) or 'through' (with last item)
.grid_#{$i} {
@extend .grid;
width: $i * $column_width - $gutter;
}
}