Flexbox layout helper classes

flexbox-layout.css

/*

Flexbox CSS helpers from the Polymer team. Extracted from https://github.com/PolymerElements/iron-flex-layout for use as just CSS.
Docs: https://elements.polymer-project.org/guides/flex-layout

@license
Copyright (c) 2017 The Polymer Project Authors. All rights reserved.
This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
Code distributed by Google as part of the polymer project is also
subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt

Usage:

Horizontal layout:
<div class="layout horizontal">
  <div>One</div>
  <div>Two</div>
  <div>Three</div>
</div>

Flexible children with horizontal layout:
<div class="horizontal layout">
  <div>Alpha</div>
  <div class="flex">Beta (flex)</div>
  <div>Gamma</div>
</div>

Flexible ratios:
<div class="horizontal layout demo">
  <div class="flex-3">Alpha</div>
  <div class="flex">Beta</div>
  <div class="flex-2">Gamma</div>
</div>
*/

  /*******************************
            Flex Layout
  *******************************/
  .layout.horizontal,
  .layout.horizontal-reverse,
  .layout.vertical,
  .layout.vertical-reverse {
    display: -ms-flexbox;
    display: -webkit-flex;
    display: flex;
  }
  .layout.inline {
    display: -ms-inline-flexbox;
    display: -webkit-inline-flex;
    display: inline-flex;
  }
  .layout.horizontal {
    -ms-flex-direction: row;
    -webkit-flex-direction: row;
    flex-direction: row;
  }
  .layout.horizontal-reverse {
    -ms-flex-direction: row-reverse;
    -webkit-flex-direction: row-reverse;
    flex-direction: row-reverse;
  }
  .layout.vertical {
    -ms-flex-direction: column;
    -webkit-flex-direction: column;
    flex-direction: column;
  }
  .layout.vertical-reverse {
    -ms-flex-direction: column-reverse;
    -webkit-flex-direction: column-reverse;
    flex-direction: column-reverse;
  }
  .layout.wrap {
    -ms-flex-wrap: wrap;
    -webkit-flex-wrap: wrap;
    flex-wrap: wrap;
  }
  
  .layout.no-wrap {
    -ms-flex-wrap: nowrap;
    -webkit-flex-wrap: nowrap;
    flex-wrap: nowrap;
  }
  .layout.wrap-reverse {
    -ms-flex-wrap: wrap-reverse;
    -webkit-flex-wrap: wrap-reverse;
    flex-wrap: wrap-reverse;
  }
  .flex-auto {
    -ms-flex: 1 1 auto;
    -webkit-flex: 1 1 auto;
    flex: 1 1 auto;
  }
  .flex-none {
    -ms-flex: none;
    -webkit-flex: none;
    flex: none;
  }
  .flex,
  .flex-1 {
    -ms-flex: 1;
    -webkit-flex: 1;
    flex: 1;
  }
  .flex-2 {
    -ms-flex: 2;
    -webkit-flex: 2;
    flex: 2;
  }
  .flex-3 {
    -ms-flex: 3;
    -webkit-flex: 3;
    flex: 3;
  }
  .flex-4 {
    -ms-flex: 4;
    -webkit-flex: 4;
    flex: 4;
  }
  .flex-5 {
    -ms-flex: 5;
    -webkit-flex: 5;
    flex: 5;
  }
  .flex-6 {
    -ms-flex: 6;
    -webkit-flex: 6;
    flex: 6;
  }
  .flex-7 {
    -ms-flex: 7;
    -webkit-flex: 7;
    flex: 7;
  }
  .flex-8 {
    -ms-flex: 8;
    -webkit-flex: 8;
    flex: 8;
  }
  .flex-9 {
    -ms-flex: 9;
    -webkit-flex: 9;
    flex: 9;
  }
  .flex-10 {
    -ms-flex: 10;
    -webkit-flex: 10;
    flex: 10;
  }
  .flex-11 {
    -ms-flex: 11;
    -webkit-flex: 11;
    flex: 11;
  }
  .flex-12 {
    -ms-flex: 12;
    -webkit-flex: 12;
    flex: 12;
  }
  /* alignment in cross axis */
  .layout.start {
    -ms-flex-align: start;
    -webkit-align-items: flex-start;
    align-items: flex-start;
  }
  .layout.center,
  .layout.center-center {
    -ms-flex-align: center;
    -webkit-align-items: center;
    align-items: center;
  }
  .layout.end {
    -ms-flex-align: end;
    -webkit-align-items: flex-end;
    align-items: flex-end;
  }
  /* alignment in main axis */
  .layout.start-justified {
    -ms-flex-pack: start;
    -webkit-justify-content: flex-start;
    justify-content: flex-start;
  }
  .layout.center-justified,
  .layout.center-center {
    -ms-flex-pack: center;
    -webkit-justify-content: center;
    justify-content: center;
  }
  .layout.end-justified {
    -ms-flex-pack: end;
    -webkit-justify-content: flex-end;
    justify-content: flex-end;
  }
  .layout.around-justified {
    -ms-flex-pack: around;
    -webkit-justify-content: space-around;
    justify-content: space-around;
  }
  .layout.justified {
    -ms-flex-pack: justify;
    -webkit-justify-content: space-between;
    justify-content: space-between;
  }
  /* self alignment */
  .self-start {
    -ms-align-self: flex-start;
    -webkit-align-self: flex-start;
    align-self: flex-start;
  }
  .self-center {
    -ms-align-self: center;
    -webkit-align-self: center;
    align-self: center;
  }
  .self-end {
    -ms-align-self: flex-end;
    -webkit-align-self: flex-end;
    align-self: flex-end;
  }
  .self-stretch {
    -ms-align-self: stretch;
    -webkit-align-self: stretch;
    align-self: stretch;
  }
  /*******************************
            Other Layout
  *******************************/
  .block {
    display: block;
  }
  /* IE 10 support for HTML5 hidden attr */
  [hidden] {
    display: none !important;
  }
  .invisible {
    visibility: hidden !important;
  }
  .relative {
    position: relative;
  }
  .fit {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
  }
  body.fullbleed {
    margin: 0;
    height: 100vh;
  }
  .scroll {
    -webkit-overflow-scrolling: touch;
    overflow: auto;
  }
  /* fixed position */
  .fixed-bottom,
  .fixed-left,
  .fixed-right,
  .fixed-top {
    position: fixed;
  }
  .fixed-top {
    top: 0;
    left: 0;
    right: 0;
  }
  .fixed-right {
    top: 0;
    right: 0;
    bottom: 0;
  }
  .fixed-bottom {
    right: 0;
    bottom: 0;
    left: 0;
  }
  .fixed-left {
    top: 0;
    bottom: 0;
    left: 0;
  }