#icon-wrapper{
  width: 100%;
  height: 120px;
  text-align: center;
  position:absolute;
  top:33%;
  margin-top:-60px;
}

#icons{
  width: 100%;
  margin:auto;
}
#icons a{
  -moz-transition: opacity .5s;
  -webkit-transition: opacity .5s;
  -o-transition: opacity .5s;
  transition: opacity .5s;
  margin-left: 10px;
  margin-right: 10px;
}

img {
  text-decoration: none;
  border: 0px;
  border-style:none;
  width: 10em;
}

#icons:hover a{
  opacity: .2;
}

#icons:hover a:hover{
  opacity: 1;
}