fonts awesome! v. 4.4

font-awesome (updated to Version 4.4)

HTML

<link rel="stylesheet" href="http://netdna.bootstrapcdn.com/font-awesome/4.4.0/css/font-awesome.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.2/jquery.min.js"></script>
<script src="http://cdnjs.cloudflare.com/ajax/libs/hammer.js/1.0.5/hammer.js"></script>
<div id="bottom">
  <div class="bottom-arrow-container">
  <i class="fa fa-angle-up" id="bottom-arrow"></i>
  </div>
  <div id="fix-bot">
    <p>Контейнер</p>
  </div>
</div>

CSS

#bottom {
  position: fixed;
  width: 100%;
  bottom: 0;
  background: rgba(153, 0, 0, 0.8);
  text-align: center;
}
#fix-bot {
  height: 50px;
}
#fix-bot p {
  color: #fff;
}
.bottom-arrow-container {
  width: 100%;
  height: 23px;
  background: rgba(153, 0, 0, 0.8);
}
#bottom-arrow {
  color: #fff;
  font-size: 50px;
  font-weight: 400;
  line-height: 17px;
  transition: transform linear 0.5s;
  display: inline-block;
}
#bottom-arrow.toggled {
  content: "\f106";
}
body {
  margin: 0;
}

JavaScript

var element = document.getElementById('bottom-arrow');
Hammer(element).on("tap", function(event) {
	$(this).toggleClass('toggled');
  $('#fix-bot').toggle('slow');
});