Static footer that sticks to the bottom, regardless of content height. Based on http://mystrd.at/modern-clean-css-sticky-footer/

static_footer

html {
  position: relative;
  min-height: 100%;
}

body {
  margin: 0 0 50px; /* bottom = footer height */
}

footer {
  position: absolute;
  left: 0;
  bottom: 0;
  height: 50px;
  width: 100%;
}