@keyframes alert {
  0%   {transform: rotateZ(0deg);}
  25%  {transform: rotateZ(30deg);}
  50%  {transform: rotateZ(0deg);}
  75%  {transform: rotateZ(-30deg);}
}

html, 
body {
  height: 100%;
  margin: 0;
}

body {
  background: #efefef;
  color: #466092;
  font-size: 18px;
}

.show {
  display: block!important;
}

.hide {
  display: none!important;
}

header {
  background: #333;
  color: #fff;
  font-size: 34px;
  letter-spacing: 1px;
  padding: 20px;
  text-shadow: 2px 1px 1px #867373;
}

.container {
  padding: 20px;
}

.subscribe,
.bell-container {
  bottom: 20px;
  cursor: pointer;
  right: 20px;
  position: fixed;
}

.subscribe {
  background: #1b6969;
  color: #fff;
  font-size: 1em;
  padding: 10px;
}

.bell {
  display: none;
}

.bell-container.show .bell {
  display: block;
  animation-name: alert;
  animation-duration: 4s;
  animation-iteration-count: 3;
}

.bell-container.show {
  display: block;
}

.steps {
  font-size: 18px;
}

.popup-container {
  position: relative;
  display: none;
}

.popup-content {
  position:absolute;
  bottom: -100%;
  right: 0;
  max-width: 400px;
  background: #a9a5a5;
  padding: 10px;
  max-height: 330px;
  overflow: auto;
}