Edit in JSFiddle

<div class="wrapper">
    <a class="btn btn-link1"><span class="glyphicon glyphicon-thumbs-up"></span> Thumbs-up</a>
<a class="btn btn-link"><span class="glyphicon glyphicon-flash"></span> Flash</a>
<a class="btn btn-link"><span class="glyphicon glyphicon-cloud"></span> Cloud</a>
</div>
<!--Icons from Glyphicon.com-->

.btn.btn-link {
  font-weight: 300;
  font-size: 13px;
  background-color: transparent;
  color: #2d2d2d;
  border: 0;
  border-radius: 0;
  outline: 1px solid;
  outline-offset: 1px;
  outline-color: #2d2d2d;
  margin: 20px;
  float: left;
  padding: 13px 18px;
  text-decoration: none;
  -webkit-transition: all 0.4s ease-in-out;
  -moz-transition: all 0.4s ease-in-out;
  -ms-transition: all 0.4s ease-in-out;
  -o-transition: all 0.4s ease-in-out;
  transition: all 0.4s ease-in-out;
}

.btn.btn-link:hover {
  background-color: #2d2d2d;
  color: white;
  outline-offset: 10px;
  outline-color: rgba(45, 45, 45, 0);
}

.wrapper{
    margin-left: 15px;
}

.btn.btn-link1 {
  font-weight: 300;
  font-size: 13px;
  background-color: transparent;
  color: #2d2d2d;
  border: 0;
  border-radius: 0;
  outline: 1px solid;
  outline-offset: 1px;
  outline-color: #2d2d2d;
  margin: 20px;
  float: left;
  padding: 13px 18px;
  text-decoration: none;
  -webkit-transition: all 0.4s ease-in-out;
  -moz-transition: all 0.4s ease-in-out;
  -ms-transition: all 0.4s ease-in-out;
  -o-transition: all 0.4s ease-in-out;
  transition: all 0.4s ease-in-out;
}

.btn.btn-link1:hover {
  background-color: #2d2d2d;
  color: white;
  outline-offset: 10px;
  outline-color: rgba(45, 45, 45, 0);
}