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// Framework grid generation |
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// |
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// Used only by Bootstrap to generate the correct number of grid classes given |
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// any value of `@grid-columns`. |
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.make-grid-columns() { |
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// Common styles for all sizes of grid columns, widths 1-12 |
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.col(@index) { // initial |
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@item: ~".col-xs-@{index}, .col-sm-@{index}, .col-md-@{index}, .col-lg-@{index}"; |
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.col((@index + 1), @item); |
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} |
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.col(@index, @list) when (@index =< @grid-columns) { // general; "=<" isn't a typo |
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@item: ~".col-xs-@{index}, .col-sm-@{index}, .col-md-@{index}, .col-lg-@{index}"; |
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.col((@index + 1), ~"@{list}, @{item}"); |
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} |
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.col(@index, @list) when (@index > @grid-columns) { // terminal |
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@{list} { |
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position: relative; |
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// Prevent columns from collapsing when empty |
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min-height: 1px; |
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// Inner gutter via padding |
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padding-left: ceil((@grid-gutter-width / 2)); |
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padding-right: floor((@grid-gutter-width / 2)); |
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} |
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} |
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.col(1); // kickstart it |
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} |
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.float-grid-columns(@class) { |
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.col(@index) { // initial |
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@item: ~".col-@{class}-@{index}"; |
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.col((@index + 1), @item); |
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} |
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.col(@index, @list) when (@index =< @grid-columns) { // general |
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@item: ~".col-@{class}-@{index}"; |
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.col((@index + 1), ~"@{list}, @{item}"); |
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} |
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.col(@index, @list) when (@index > @grid-columns) { // terminal |
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@{list} { |
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float: left; |
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} |
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} |
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.col(1); // kickstart it |
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} |
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.calc-grid-column(@index, @class, @type) when (@type = width) and (@index > 0) { |
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.col-@{class}-@{index} { |
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width: percentage((@index / @grid-columns)); |
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} |
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} |
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.calc-grid-column(@index, @class, @type) when (@type = push) and (@index > 0) { |
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.col-@{class}-push-@{index} { |
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left: percentage((@index / @grid-columns)); |
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} |
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} |
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.calc-grid-column(@index, @class, @type) when (@type = push) and (@index = 0) { |
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.col-@{class}-push-0 { |
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left: auto; |
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} |
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} |
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.calc-grid-column(@index, @class, @type) when (@type = pull) and (@index > 0) { |
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.col-@{class}-pull-@{index} { |
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right: percentage((@index / @grid-columns)); |
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} |
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} |
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.calc-grid-column(@index, @class, @type) when (@type = pull) and (@index = 0) { |
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.col-@{class}-pull-0 { |
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right: auto; |
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} |
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} |
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.calc-grid-column(@index, @class, @type) when (@type = offset) { |
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.col-@{class}-offset-@{index} { |
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margin-left: percentage((@index / @grid-columns)); |
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} |
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} |
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// Basic looping in LESS |
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.loop-grid-columns(@index, @class, @type) when (@index >= 0) { |
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.calc-grid-column(@index, @class, @type); |
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// next iteration |
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.loop-grid-columns((@index - 1), @class, @type); |
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} |
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// Create grid for specific class |
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.make-grid(@class) { |
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.float-grid-columns(@class); |
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.loop-grid-columns(@grid-columns, @class, width); |
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.loop-grid-columns(@grid-columns, @class, pull); |
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.loop-grid-columns(@grid-columns, @class, push); |
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.loop-grid-columns(@grid-columns, @class, offset); |
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} |