// Framework grid generation // // Used only by Bootstrap to generate the correct number of grid classes given // any value of `@grid-columns`. .make-grid-columns() { // Common styles for all sizes of grid columns, widths 1-12 .col(@index) { // initial @item: ~".col-xs-@{index}, .col-sm-@{index}, .col-md-@{index}, .col-lg-@{index}"; .col((@index + 1), @item); } .col(@index, @list) when (@index =< @grid-columns) { // general; "=<" isn't a typo @item: ~".col-xs-@{index}, .col-sm-@{index}, .col-md-@{index}, .col-lg-@{index}"; .col((@index + 1), ~"@{list}, @{item}"); } .col(@index, @list) when (@index > @grid-columns) { // terminal @{list} { position: relative; // Prevent columns from collapsing when empty min-height: 1px; // Inner gutter via padding padding-left: ceil((@grid-gutter-width / 2)); padding-right: floor((@grid-gutter-width / 2)); } } .col(1); // kickstart it } .float-grid-columns(@class) { .col(@index) { // initial @item: ~".col-@{class}-@{index}"; .col((@index + 1), @item); } .col(@index, @list) when (@index =< @grid-columns) { // general @item: ~".col-@{class}-@{index}"; .col((@index + 1), ~"@{list}, @{item}"); } .col(@index, @list) when (@index > @grid-columns) { // terminal @{list} { float: left; } } .col(1); // kickstart it } .calc-grid-column(@index, @class, @type) when (@type = width) and (@index > 0) { .col-@{class}-@{index} { width: percentage((@index / @grid-columns)); } } .calc-grid-column(@index, @class, @type) when (@type = push) and (@index > 0) { .col-@{class}-push-@{index} { left: percentage((@index / @grid-columns)); } } .calc-grid-column(@index, @class, @type) when (@type = push) and (@index = 0) { .col-@{class}-push-0 { left: auto; } } .calc-grid-column(@index, @class, @type) when (@type = pull) and (@index > 0) { .col-@{class}-pull-@{index} { right: percentage((@index / @grid-columns)); } } .calc-grid-column(@index, @class, @type) when (@type = pull) and (@index = 0) { .col-@{class}-pull-0 { right: auto; } } .calc-grid-column(@index, @class, @type) when (@type = offset) { .col-@{class}-offset-@{index} { margin-left: percentage((@index / @grid-columns)); } } // Basic looping in LESS .loop-grid-columns(@index, @class, @type) when (@index >= 0) { .calc-grid-column(@index, @class, @type); // next iteration .loop-grid-columns((@index - 1), @class, @type); } // Create grid for specific class .make-grid(@class) { .float-grid-columns(@class); .loop-grid-columns(@grid-columns, @class, width); .loop-grid-columns(@grid-columns, @class, pull); .loop-grid-columns(@grid-columns, @class, push); .loop-grid-columns(@grid-columns, @class, offset); } 国产呦萝小初合集,久久香蕉国产线看观看乱码,俄罗斯破女处视频免费观看

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