mkdocs-material/src/assets/stylesheets/layout/_base.scss

////
/// Copyright (c) 2016 Martin Donath <martin.donath@squidfunk.com>
///
/// Permission is hereby granted, free of charge, to any person obtaining a
/// copy of this software and associated documentation files (the "Software"),
/// to deal in the Software without restriction, including without limitation
/// the rights to use, copy, modify, merge, publish, distribute, sublicense,
/// and/or sell copies of the Software, and to permit persons to whom the
/// Software is furnished to do so, subject to the following conditions:
///
/// The above copyright notice and this permission notice shall be included in
/// all copies or substantial portions of the Software.
///
/// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
/// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
/// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
/// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
/// DEALINGS
////

// ----------------------------------------------------------------------------
// Grid
// ----------------------------------------------------------------------------

// Stretch container to viewport and set base font-size to 10px for simple
// calculations base on relative ems (rems).
html {
  height: 100%;
  font-size: 62.5%;

  // [screen medium +] Set base font-size to 11px
  @include break-from-device(screen medium) {
    font-size: 68.75%;
  }

  // [screen large +] Set base font-size to 12px
  @include break-from-device(screen large) {
    font-size: 75%;
  }
}

// Stretch body to container and leave room for footer.
body {
  position: relative;
  min-height: 100%;

  // Lock body to viewport height (e.g. in search mode)
  &.md-js__body--locked {
    height: 100%;
    overflow: hidden;
  }
}

// Horizontal separators
hr {
  display: block;
  height: px2rem(1px);
  padding: 0;
  border: 0;
}

// Template-wide grid
.md-grid {
  max-width: 120.0rem;
  margin-right: auto;
  margin-left: auto;
}

// Prevent collapse of margin when setting margin on child element
.md-container,
.md-main {
  overflow: auto;
}

// Add top spacing to acount for header
.md-main {
  margin-top: 5.6rem;

  // Bottom spacing to account for header and footer
  &__inner {
    margin-top: 2.4rem + 0.6rem;
    margin-bottom: 9.2rem;
    overflow: auto;
  }
}

// ----------------------------------------------------------------------------
// Navigational elements
// ----------------------------------------------------------------------------

// Toggle checkbox
.md-toggle {
  display: none;
}

// Overlay below expanded drawer
.md-overlay {
  position: fixed;
  top: 0;
  width: 0;
  height: 0;
  transition: width   0.0s 0.25s,
              height  0.0s 0.25s,
              opacity 0.25s;
  background: $md-color-black--light;
  opacity: 0;
  z-index: 2;

  // [tablet -]: Trigger overlay
  @include break-to-device(tablet) {

    // Expanded drawer
    .md-toggle--drawer:checked ~ & {
      width: 100%;
      height: 100%;
      transition: width   0.0s,
                  height  0.0s,
                  opacity 0.25s;
      opacity: 1;
    }
  }
}

// ----------------------------------------------------------------------------
// Flexible elements, implemented with table layout
// ----------------------------------------------------------------------------

// Flexible layout container
.md-flex {
  display: table;

  // Flexible layout container cell/element
  &__cell {
    display: table-cell;
    position: relative;
    vertical-align: top;

    // Shrink to minimum width
    &--shrink {
      width: 1%;
    }

    // Stretch to maximum width
    &--stretch {
      display: table;
      width: 100%;
      table-layout: fixed;
    }
  }

  // Apply ellipsis in case of overflowing text
  &__ellipsis {
    display: table-cell;
    text-overflow: ellipsis;
    white-space: nowrap;
    overflow: hidden;
  }
}