html,
body {
  height: 100%;
}
body {
  position: relative;
  padding: 0 5px;
}
#bottomBtns {
  border-top: 1px solid #ccc;
  width: 100%;
  position: absolute;
  bottom: 0;
  padding: 5px 10px 2px 0;
}
#bottomBtns div {
  text-align: right;
}