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  <div class="container">

<section class="hero">
  <div class="container">
    <div class="hero-content">
  <h1>Flexbox Sticky Footer</h1>
      <h2>The simplest, hack-free way to make a sticky footer for modern web browsers.</h2> 
      <ul class="features">
        <li class="all-css">100% CSS</li> 
       <li class="js-free">JavaScript Free</li>

  <section class="intro">
  <div class="container">
    <h3>The Problem</h3>
    <p>On 'short' pages without much content, your footer rides up too high. I know. Embarassing, huh? This of course is not a new problem, but in the old-days before flexbox, we had to resort to using hacks or JavaScript to make our footers sticky. What a mess. Not any more.</p>
    <h3>The Fix</h3>
    <p> To use, make the body element the Flex Container and then add a flex-grow property to the main content area. No matter the content size, the div expands to take up any leftover space. See the commments in the CSS for more information.
    <p>This pen was inspired by a number of articles inlcuding this one by <a href=''>Phillip Walton</a>.</p>
    <p>The image above was taken last year on my space vacation. I wish! No really, the hero image is a NASA photo I yanked from the wonderful free stock photo site, <a href="" target="_blank">Unsplash</a>.</p>

  <div class="container">
    <h3>Sticky Footer</h3>


                @inlcude "compass/css3";

The Flexbox Magic. 

body {
  display: flex; /* Make the body element a flex container */
  flex-direction: column; /* Change the flexbox axis from the default which is row*/
  height: 100%; /* I needed this */
  min-height: 100vh;  /* and this to make it work right */

main {flex: 1 auto;} /* Make the main content area grow to take up leftover space. 'auto' was added as it apparently makes it compatible with IE 10.*/

The Styles below are just to make the demo pretty. 
body {
  font-size: 100%;
  line-height: 1.4;
  color: #404040;

.container {
  padding: 0 5%;
  margin: 0 auto;
  max-width: 760px;

.intro {padding: 1.5rem;}

.hero {
  background: lighten(steelblue, 10%) url('') no-repeat 0 0;
  background-size: cover;
  padding: 2.6em 0;

.hero-content {
  background: rgba(5,5,5,0.5);
  border-radius: 6px;
  padding: 1.5em;
    h1 {
    font-size: 2.3rem;
    color: #eee;
    h2 {
      font-size: 1.1rem; 
      margin-bottom: 1.5em;
      color: #bbb;
      font-weight: normal;

.features {
  list-style: none;
  color: #eee;
  padding: 0;
  li {
     padding: 0.5rem;
     margin: 0 12px 12px 0;
     display: inline-block;
     border-radius: 4px;
  .all-css {
     background: firebrick;
  .js-free {
    background: steelblue;

header, footer {
  color: darken(steelblue, 10%);
  background-color: darken(steelblue, 50%);

@media screen and (min-width: 50rem) {
  body {font-size: 110%;}
  .hero { padding: 4em 0;}
  .hero-content {max-width: 66%;}