template/components/styles-layout.css

/*
  Column: 60px
  Gutter: 24px

  Body: 648px
    - 8 columns
    - 7 gutters
  Middle: 816px
  Page: 984px
    - 12 columns
    - 11 gutters
*/

.l-body,
.l-body-outset,
.l-page,
.l-page-outset,
.l-middle,
.l-middle-outset,
d-article > div,
d-article > p,
d-article > h1,
d-article > h2,
d-article > h3,
d-article > h4,
d-article > figure,
d-article > ul,
d-article > d-abstract,
d-article > d-code,
d-article section > div,
d-article section > p,
d-article section > h1,
d-article section > h2,
d-article section > h3,
d-article section > h4,
d-article section > figure,
d-article section > ul,
d-article section > d-abstract,
d-article section > d-code {
  width: auto;
  margin-left: 24px;
  margin-right: 24px;
  box-sizing: border-box;
}

@media(min-width: 768px) {
  .l-body,
  .l-body-outset,
  .l-page,
  .l-page-outset,
  .l-middle,
  .l-middle-outset,
  d-article > div,
  d-article > p,
  d-article > h1,
  d-article > h2,
  d-article > h3,
  d-article > h4,
  d-article > figure,
  d-article > ul,
  d-article > d-abstract,
  d-article > d-code,
  d-article section > div,
  d-article section > p,
  d-article section > h1,
  d-article section > h2,
  d-article section > h3,
  d-article section > h4,
  d-article section > figure,
  d-article section > ul,
  d-article section > d-abstract,
  d-article section > d-code {
    margin-left: 72px;
    margin-right: 72px;
  }
}

@media(min-width: 1080px) {
  .l-body,
  d-article > div,
  d-article > p,
  d-article > h2,
  d-article > h3,
  d-article > h4,
  d-article > figure,
  d-article > ul,
  d-article > d-abstract,
  d-article > d-code,
  d-article section > div,
  d-article section > p,
  d-article section > h2,
  d-article section > h3,
  d-article section > h4,
  d-article section > figure,
  d-article section > ul,
  d-article section > d-abstract,
  d-article section > d-code {
    margin-left: calc(50% - 984px / 2);
    width: 648px;
  }
  .l-body-outset,
  d-article .l-body-outset {
    margin-left: calc(50% - 984px / 2 - 96px/2);
    width: calc(648px + 96px);
  }
  .l-middle,
  d-article .l-middle {
    width: 816px;
    margin-left: calc(50% - 984px / 2);
    margin-right: auto;
  }
  .l-middle-outset,
  d-article .l-middle-outset {
    width: calc(816px + 96px);
    margin-left: calc(50% - 984px / 2 - 48px);
    margin-right: auto;
  }
  d-article > h1,
  d-article section > h1,
  .l-page,
  d-article .l-page,
  d-article.centered .l-page {
    width: 984px;
    margin-left: auto;
    margin-right: auto;
  }
  .l-page-outset,
  d-article .l-page-outset,
  d-article.centered .l-page-outset {
    width: 1080px;
    margin-left: auto;
    margin-right: auto;
  }
  .l-screen,
  d-article .l-screen,
  d-article.centered .l-screen {
    margin-left: auto;
    margin-right: auto;
    width: auto;
  }
  .l-screen-inset,
  d-article .l-screen-inset,
  d-article.centered .l-screen-inset {
    margin-left: 24px;
    margin-right: 24px;
    width: auto;
  }
  .l-gutter,
  d-article .l-gutter {
    clear: both;
    float: right;
    margin-top: 0;
    margin-left: 24px;
    margin-right: calc((100vw - 984px) / 2 + 168px);
    width: calc((984px - 648px) / 2 - 24px);
  }

  /* Side */
  .side.l-body,
  d-article .side.l-body {
    clear: both;
    float: right;
    margin-top: 0;
    margin-left: 48px;
    margin-right: calc((100vw - 984px + 648px) / 2);
    width: calc(648px / 2 - 24px - 84px);
  }
  .side.l-body-outset,
  d-article .side.l-body-outset {
    clear: both;
    float: right;
    margin-top: 0;
    margin-left: 48px;
    margin-right: calc((100vw - 984px + 648px - 48px) / 2);
    width: calc(648px / 2 - 48px + 24px);
  }
  .side.l-middle,
  d-article .side.l-middle {
    clear: both;
    float: right;
    width: calc(456px - 84px);
    margin-left: 48px;
    margin-right: calc((100vw - 984px) / 2 + 168px);
  }
  .side.l-middle-outset,
  d-article .side.l-middle-outset {
    clear: both;
    float: right;
    width: 456px;
    margin-left: 48px;
    margin-right: calc((100vw - 984px) / 2 + 168px);
  }
  .side.l-page,
  d-article .side.l-page {
    clear: both;
    float: right;
    margin-left: 48px;
    width: calc(624px - 84px);
    margin-right: calc((100vw - 984px) / 2);
  }
  .side.l-page-outset,
  d-article .side.l-page-outset {
    clear: both;
    float: right;
    width: 624px;
    margin-right: calc((100vw - 984px) / 2);
  }
}


/* Rows and Columns */

.row {
  display: flex;
}
.column {
  flex: 1;
  box-sizing: border-box;
  margin-right: 24px;
  margin-left: 24px;
}
.row > .column:first-of-type {
  margin-left: 0;
}
.row > .column:last-of-type {
  margin-right: 0;
}