<section class="snowball-block snowball-block-share">
  <h3>{{header}}</h3>
  <div>
    <span class="button{{facebook}}"><i class="fa fa-facebook" alt="Facebook"></i></span>
    <span class="button{{twitter}}"><i class="fa fa-twitter" alt="Twitter"></i></span>
    <span class="button{{tumblr}}"><i class="fa fa-tumblr" alt="Tumblr"></i></span>
    <span class="button{{google-plus}}"><i class="fa fa-google-plus" alt="Google Plus"></i></span>
  </div>
<style scoped>
h3 {
  text-align: center;
}

div {
  margin: 1em auto;
  text-align: center;
}

.button {
  display: none;
  width: 60px;
  height: 60px;
  padding: 0;
  margin: 0 6px;
  border-radius: 50%;
  text-align: center;
  color: #fff;
  cursor: pointer;
}

.button:hover {
  transition: box-shadow 0.3s;
  box-shadow: inset 0 0 100px rgba(0, 0, 0, 0.2);
}

.button.show {
  display: inline-block;
}

.button.facebook {
  background-color: #2C408E;
}

.button.twitter {
  background-color: #008DC9;
}

.button.tumblr {
  background-color: #27354B;
}

.button.google-plus {
  background-color: #D92900;
}

.button i {
  font-size: 28px;
  line-height: 62px;
}
</style>
</section>