#download {
  background: #333;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 5px;
  -moz-border-radius: 5px;
  -webkit-border-radius: 5px;
  display: block;
  font-size: 20px;
  font-weight: bold;
  margin: 60px auto;
  max-width: 500px;
  padding: 20px;
  }

#download:hover {
  background: rgba(255,255,255,.15);
  }

.events {
  list-style: none;
  }

.callbacks_container {
  margin-bottom: 50px;
  position: relative;
  float: left;
  width: 100%;
  }

.callbacks {
  position: relative;
  list-style: none;
  overflow: hidden;
  width: 100%;
  padding: 0;
  margin: 0;
  }

.callbacks li {
  position: absolute;
  width: 100%;
  left: 0;
  top: 0;
  }

.callbacks img {
  display: block;
  position: relative;
  z-index: 1;
  height: auto;
  width: 100%;
  border: 0;
  }

.callbacks_nav {
  position: absolute;
  -webkit-tap-highlight-color: rgba(0,0,0,0);
  top: 52%;
  left: 0;
  opacity: 0.7;
  z-index: 3;
  text-indent: -9999px;
  overflow: hidden;
  text-decoration: none;
  height: 60px;
  width: 35px;
  background: transparent url("../images/themes.gif") no-repeat left top;
  margin-top: -45px;
  }
.callbacks_nav:hover{
	  opacity: 1.0;
}
.callbacks_nav:active {
  opacity: 1.0;
  }

.callbacks_nav.next {
  left: auto;
  background-position: right top;
  right: 0;
  }
@media only screen and (max-width: 400px) {
	.callbacks_nav {
		height: 45px;
		width: 25px;
		top: 60%;
		background: transparent url("../images/themes-s.gif") no-repeat left top;
	}
}