KNACSS/sass/_03-grids.scss

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/* ---------------------------------- */
/* ==Grids */
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/* ---------------------------------- */
// Tuto : http://www.alsacreations.com/tuto/lire/1659-une-grille-responsive-avec-flexbox-et-LESS.html
// Demo : http://codepen.io/raphaelgoetter/pen/ZYjwEB
// Usage in vanilla CSS:
// - <div class="grid-4"> for an equal fourth columns grid container
// - <div class="grid-2-1"> for an uneven columns grid container
// Usage with preprocessors : if you're using Sass, you can config grids variables :
// n = number of columns (default = 4) / g = gutter value (default = 1em)
// example : .grid-perso { @include grid(12, 10px); }
// ... or uneven grids :
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// left = left ratio column (default = 2) / right = right ratio column (default = 1)
// example : .grid-perso { @include uneven-grid(2, 1, 10px); }
/* grid container */
[class*="#{$kna-namespace}grid-"] {
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display: flex;
flex-direction: row;
flex-wrap: wrap;
margin-left: -$gutter;
/* inline-block fallback for IE9 generation */
letter-spacing: -0.31em;
text-rendering: optimizespeed;
}
/* grid childs */
[class*="#{$kna-namespace}grid-"] > * {
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flex: 0 0 auto;
width: calc(100% * 1 / #{$number} - #{$gutter} - .01px);
margin-left: $gutter;
/* inline-block fallback for IE9 generation */
display: inline-block;
vertical-align: top;
letter-spacing: normal;
text-rendering: auto;
}
// Sass mixins for *equal* columns grid container
// example : .grid-perso { @include grid(12); }
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@mixin grid($number:$number,$gutter:$gutter) {
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& > * {
width: calc(100% * 1 / #{$number} - #{$gutter} - .01px);
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}
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& > .#{$kna-namespace}flex-item-double {
width: calc(100% * 2 / #{$number} - #{$gutter});
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}
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}
// Examples : will be compiled in CSS
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[class*="#{$kna-namespace}grid-2"] {
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@include grid(2);
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}
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[class*="#{$kna-namespace}grid-3"] {
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@include grid(3);
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}
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[class*="#{$kna-namespace}grid-4"] {
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@include grid(4);
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}
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[class*="#{$kna-namespace}grid-5"] {
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@include grid(5);
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}
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[class*="#{$kna-namespace}grid-6"] {
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@include grid(6);
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}
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[class*="#{$kna-namespace}grid-7"] {
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@include grid(7);
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}
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[class*="#{$kna-namespace}grid-8"] {
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@include grid(8);
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}
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[class*="#{$kna-namespace}grid-10"] {
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@include grid(10);
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}
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[class*="#{$kna-namespace}grid-12"] {
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@include grid(12);
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}
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/* Responsive grid */
// "small-2" = 2 columns when small screen
// example : .grid-4-small-2 will be 4 then 2 columns
@media (max-width: $small-screen) {
[class*="-small-4"] > * {
width: calc(100% * 1 / 4 - #{$gutter} - .01px);
}
[class*="-small-4"] > .flexitem-double {
width: calc(100% * 1 / 2 - #{$gutter} - .01px);
}
[class*="-small-3"] > * {
width: calc(100% * 1 / 3 - #{$gutter} - .01px);
}
[class*="-small-3"] > .flexitem-double {
width: calc(100% * 2 / 3 - #{$gutter} - .01px);
}
[class*="-small-2"] > * {
width: calc(100% * 1 / 2 - #{$gutter} - .01px);
}
[class*="-small-2"] > .flexitem-double {
width: calc(100% - #{$gutter} - .01px);
}
[class*="-small-1"] > * {
width: calc(100% - #{$gutter} - .01px);
}
[class*="-small-1"] > .flexitem-double {
width: calc(100% - #{$gutter} - .01px);
}
}
// "tiny-1" = 1 column when tiny screen
// example : .grid-4-small-2-tiny-1 will be 4 then 2 columns then 1 column
@media (max-width: $tiny-screen) {
[class*="-tiny-2"] > * {
width: calc(100% * 1 / 2 - #{$gutter} - .01px);
}
[class*="-tiny-2"] > .flexitem-double {
width: calc(100% - #{$gutter} - .01px);
}
[class*="-tiny-1"] > * {
width: calc(100% - #{$gutter} - .01px);
}
[class*="-tiny-1"] > .flexitem-double {
width: calc(100% - #{$gutter} - .01px);
}
}
// LESS mixins for *unequal* columns grid container
// example : .grid-perso { @include uneven-grid(2, 1); }
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@mixin uneven-grid($left:$left, $right:$right, $gutter:$gutter) {
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& > *:nth-child(odd) {
$size: ($left / ($left + $right)) * 100%;
width: calc(#{$size} - #{$gutter});
}
& > *:nth-child(even) {
$size: ($right / ($left + $right)) * 100%;
width: calc(#{$size} - #{$gutter});
}
@media (max-width: $tiny-screen) {
& > *:nth-child(n) {
width: calc(100% - #{$gutter});
}
}
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}
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// Examples : will be compiled in CSS
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.#{$kna-namespace}grid-2-1 {
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@include uneven-grid(2,1);
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}
.#{$kna-namespace}grid-1-2 {
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@include uneven-grid(1,2);
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}
.#{$kna-namespace}grid-3-1 {
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@include uneven-grid(3,1);
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}
.#{$kna-namespace}grid-1-3 {
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@include uneven-grid(1,3);
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}
.#{$kna-namespace}grid-3-2 {
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@include uneven-grid(3,2);
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}
.#{$kna-namespace}grid-2-3 {
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@include uneven-grid(2,3);
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}
.#{$kna-namespace}grid-4-1 {
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@include uneven-grid(4,1);
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}
.#{$kna-namespace}grid-1-4 {
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@include uneven-grid(1,4);
}