<div class="content">
  <h1>Sticky Footer with Flexbox</h1>
  <p><button id="add">Add Content</button></p>
</div>

<footer class="footer">
  Footer 
</footer>
html {
  height: 100%;
}
body {
  display: flex;
  flex-direction: column;
  height: 100vh; /* Avoid the IE 10-11 `min-height` bug. */
}
.content {
  flex: 1 0 auto; /* Prevent Chrome, Opera, and Safari from letting these items shrink to smaller than their content's default minimum size. */
  padding: 20px;
}
.footer {
  flex-shrink: 0; /* Prevent Chrome, Opera, and Safari from letting these items shrink to smaller than their content's default minimum size. */
  padding: 20px;
}










* {
  box-sizing: border-box;
}
body {
  margin: 0;
  font: 16px Sans-Serif;
}
h1 {
  margin: 0 0 20px 0;
}
p {
  margin: 0 0 20px 0;
}
footer {
  background: #42A5F5;
  color: white;
}
// Not required!
// This is just to demo functionality.

$("#add").on("click", function() {
  $("<p>Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas. Vestibulum tortor quam, feugiat vitae, ultricies eget, tempor sit amet, ante. Donec eu libero sit amet quam egestas semper. Aenean ultricies mi vitae est. Mauris placerat eleifend leo.</p>").appendTo(".content");
});

External CSS

This Pen doesn't use any external CSS resources.

External JavaScript

  1. https://code.jquery.com/jquery-2.2.4.min.js