.navbar {
  -moz-transition: all 150ms cubic-bezier(0.165, 0.84, 0.44, 1);
  -webkit-transition: all 150ms cubic-bezier(0.165, 0.84, 0.44, 1);
  transition: all 150ms cubic-bezier(0.165, 0.84, 0.44, 1);
  width: 100%;
  height: 50px;
  line-height: 50px;
  background: #95a5a6;
  position: fixed;
  top: 0;
  left: 0;
  color: #fff;
  text-align: center;
}

.navbar.stick {
  height: 50px;
  line-height: 50px;
}

.navbar.stick.visible { background-color: #e74c3c; }

.navbar.stick.hidden { top: -50px; }