KNACSS/sass/grids/_grillade.scss

/* ---------------------------------- */
/* ==Grillade : Simple Grid System    */
/* ---------------------------------- */
/* Doc : http://grillade.knacss.com */

// Grids variables
$grid-gutter: 1rem !default; // gutter value for grid layouts. Unit can be: %, px, em, rem
$grid-gutter-l: $grid-gutter * 2;
$grid-gutter-xl: $grid-gutter * 4;

/* Grids common rules (for mono- and multi-lines grid) */
@media (min-width: ($tiny + 1)) {
  [class*=" grid"],
  [class^="grid"] {
    & > * {
      box-sizing: border-box;
      min-width: 0; /* avoid min-width: auto */
      min-height: 0; /* avoid min-height: auto */
    }

    &.has-gutter {
      margin-right: -$grid-gutter / 2;
      margin-left: -$grid-gutter / 2;

      & > * {
        margin-right: $grid-gutter / 2;
        margin-left: $grid-gutter / 2;
      }
    }

    &.has-gutter-l {
      margin-right: -$grid-gutter-l / 2;
      margin-left: -$grid-gutter-l / 2;

      & > * {
        margin-right: $grid-gutter-l / 2;
        margin-left: $grid-gutter-l / 2;
      }
    }

    &.has-gutter-xl {
      margin-right: -$grid-gutter-xl / 2;
      margin-left: -$grid-gutter-xl / 2;

      & > * {
        margin-right: $grid-gutter-xl / 2;
        margin-left: $grid-gutter-xl / 2;
      }
    }
  }
  /* Mono-line grid system (.grid) */
  .grid {
    display: flex;

    & > * {
      flex: 1 1 0;
    }
  }
  /* Multi-line grid system (.grid-X) */
  [class*=" grid-"],
  [class^="grid-"] {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;

    & > * {
      flex: 0 0 auto;
      width: calc(100% - .01px); /* @bugfix IE https://github.com/alsacreations/KNACSS/issues/133; */
    }

    &.has-gutter > * {
      width: calc(100% - #{$grid-gutter} - .01px);
    }

    &.has-gutter-l > * {
      width: calc(100% - #{$grid-gutter-l} - .01px);
    }

    &.has-gutter-xl > * {
      width: calc(100% - #{$grid-gutter-xl} - .01px);
    }
  }
}
/* Grid offsets */
.push {
  margin-left: auto;
}

.pull {
  margin-right: auto;
}
/* Grid order */
.grid-item-first {
  order: -1;
}

.grid-item-last {
  order: 1;
}

[class*="--reverse"] {
  flex-direction: row-reverse;
}
// Sass mixin for Multi-line grid system
// example : .grid-perso { @include grid(12, 3rem); }
@mixin grid($grid-number:4, $new-gutter:$grid-gutter) {
  & > * {
    width: calc(100% * 1 / #{$grid-number} - .01px);
  }

  &.has-gutter > * {
    width: calc(100% * 1 / #{$grid-number} - #{$grid-gutter} - .01px);
  }

  &.has-gutter-l > * {
    width: calc(100% * 1 / #{$grid-number} - #{$grid-gutter-l} - .01px);
  }

  &.has-gutter-xl > * {
    width: calc(100% * 1 / #{$grid-number} - #{$grid-gutter-xl} - .01px);
  }
  @if ($new-gutter != 0) {
     @if ($new-gutter != $grid-gutter){
      margin-right: -$new-gutter / 2;
      margin-left: -$new-gutter / 2;

      & > * {
        margin-right: $new-gutter / 2;
        margin-left: $new-gutter / 2;
        width: calc(100% * 1 / #{$grid-number} - #{$new-gutter} - .01px);
      }
    }
  }
}
// Constructing grids : will be compiled in CSS
@media (min-width: ($tiny + 1)) {
   @for $i from 2 through 12{
    [class*="grid-#{$i}"] {
      @include grid(#{$i},0);
    }
  }
}
/* Sizing individual children */
@media (min-width: ($tiny + 1)) {
  .full {
    flex: 0 0 auto;
    width: calc(100% - .01px);

    .has-gutter & {
      width: calc(100% - #{$grid-gutter} - .01px);
    }

    .has-gutter-l & {
      width: calc(100% - #{$grid-gutter-l} - .01px);
    }

    .has-gutter-xl & {
      width: calc(100% - #{$grid-gutter-xl} - .01px);
    }
  }

  .one-half {
    flex: 0 0 auto;
    width: calc(50% - .01px);

    .has-gutter & {
      width: calc(50% - #{$grid-gutter} - .01px);
    }

    .has-gutter-l & {
      width: calc(50% - #{$grid-gutter-l} - .01px);
    }

    .has-gutter-xl & {
      width: calc(50% - #{$grid-gutter-xl} - .01px);
    }
  }

  .one-third {
    flex: 0 0 auto;
    width: calc(100% / 3 - .01px);

    .has-gutter & {
      width: calc(100% / 3 - #{$grid-gutter} - .01px);
    }

    .has-gutter-l & {
      width: calc(100% / 3 - #{$grid-gutter-l} - .01px);
    }

    .has-gutter-xl & {
      width: calc(100% / 3 - #{$grid-gutter-xl} - .01px);
    }
  }

  .one-quarter {
    flex: 0 0 auto;
    width: calc(100% / 4 - .01px);

    .has-gutter & {
      width: calc(100% / 4 - #{$grid-gutter} - .01px);
    }

    .has-gutter-l & {
      width: calc(100% / 4 - #{$grid-gutter-l} - .01px);
    }

    .has-gutter-xl & {
      width: calc(100% / 4 - #{$grid-gutter-xl} - .01px);
    }
  }

  .one-fifth {
    flex: 0 0 auto;
    width: calc(100% / 5 - .01px);

    .has-gutter & {
      width: calc(100% / 5 - #{$grid-gutter} - .01px);
    }

    .has-gutter-l & {
      width: calc(100% / 5 - #{$grid-gutter-l} - .01px);
    }

    .has-gutter-xl & {
      width: calc(100% / 5 - #{$grid-gutter-xl} - .01px);
    }
  }

  .two-thirds {
    flex: 0 0 auto;
    width: calc(100% / 3 * 2 - .01px);

    .has-gutter & {
      width: calc(100% / 3 * 2 - #{$grid-gutter} - .01px);
    }

    .has-gutter-l & {
      width: calc(100% / 3 * 2 - #{$grid-gutter-l} - .01px);
    }

    .has-gutter-xl & {
      width: calc(100% / 3 * 2 - #{$grid-gutter-xl} - .01px);
    }
  }

  .three-quarters {
    flex: 0 0 auto;
    width: calc(100% / 4 * 3 - .01px);

    .has-gutter & {
      width: calc(100% / 4 * 3 - #{$grid-gutter} - .01px);
    }

    .has-gutter-l & {
      width: calc(100% / 4 * 3 - #{$grid-gutter-l} - .01px);
    }

    .has-gutter-xl & {
      width: calc(100% / 4 * 3 - #{$grid-gutter-xl} - .01px);
    }
  }
}
/* Responsive Small Breakpoint */
// -small-X suffix means "X columns on small screen"
// example : .grid-4-small-2 will be 1 column (tiny and down) then 2 columns (until small) then 4 columns
@media (min-width: ($tiny + 1)) and (max-width: $small) {
  [class*="-small-4"] {
    & > * {
      width: calc(100% / 4 - .01px);
    }

    &.has-gutter > * {
      width: calc(100% / 4 - #{$grid-gutter} - .01px);
    }

    &.has-gutter-l > * {
      width: calc(100% / 4 - #{$grid-gutter-l} - .01px);
    }

    &.has-gutter-xl > * {
      width: calc(100% / 4 - #{$grid-gutter-xl} - .01px);
    }
  }

  [class*="-small-3"] {
    & > * {
      width: calc(100% / 3 - .01px);
    }

    &.has-gutter > * {
      width: calc(100% / 3 - #{$grid-gutter} - .01px);
    }

    &.has-gutter-l > * {
      width: calc(100% / 3 - #{$grid-gutter-l} - .01px);
    }

    &.has-gutter-xl > * {
      width: calc(100% / 3 - #{$grid-gutter-xl} - .01px);
    }
  }

  [class*="-small-2"] {
    & > * {
      width: calc(100% / 2 - .01px);
    }

    &.has-gutter > * {
      width: calc(100% / 2 - #{$grid-gutter} - .01px);
    }

    &.has-gutter-l > * {
      width: calc(100% / 2 - #{$grid-gutter-l} - .01px);
    }

    &.has-gutter-xl > * {
      width: calc(100% / 2 - #{$grid-gutter-xl} - .01px);
    }
  }

  [class*="-small-1"] {
    & > * {
      width: calc(100% - .01px);
    }

    &.has-gutter > * {
      width: calc(100% - #{$grid-gutter} - .01px);
    }

    &.has-gutter-l > * {
      width: calc(100% - #{$grid-gutter-l} - .01px);
    }

    &.has-gutter-xl > * {
      width: calc(100% - #{$grid-gutter-xl} - .01px);
    }
  }
}