<div class="social-icons">
  <a class="social-icon social-icon--codepen">
    <i class="fa fa-codepen"></i>
    <div class="tooltip">Codepen</div>
  </a>
  <a class="social-icon social-icon--github">
    <i class="fa fa-github"></i>
    <div class="tooltip">Github</div>
  </a>
  <a class="social-icon social-icon--twitter">
    <i class="fa fa-twitter"></i>
    <div class="tooltip">Twitter</div>
  </a>
  <a class="social-icon social-icon--dribbble">
    <i class="fa fa-dribbble"></i>
    <div class="tooltip">Dribbble</div>
  </a>
  <a class="social-icon social-icon--instagram">
    <i class="fa fa-instagram"></i>
    <div class="tooltip">Instagram</div>
  </a>
  <a class="social-icon social-icon--linkedin">
    <i class="fa fa-linkedin"></i>
    <div class="tooltip">LinkedIn</div>
  </a>
  <a class="social-icon social-icon--facebook">
    <i class="fa fa-facebook"></i>
    <div class="tooltip">Facebook</div>
  </a>
</div>
/* Demo */
body {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}

/* Color Variables */
$color-codepen: #000;
$color-github: #4284c0;
$color-twitter: #2b97f1;
$color-dribbble: #ef5a92;
$color-instagram: #527fa6;
$color-linkedin: #006599;
$color-facebook: #3b5a9b;

/* Social Icon Mixin */
@mixin social-icon($color) {
  background: $color;
  color: #fff;

  .tooltip {
    background: $color;
    color: currentColor;

    &:after {
      border-top-color: $color;
    }
  }
}

/* Social Icons */
.social-icons {
  display: flex;
}

.social-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  width: 80px;
  height: 80px;
  margin: 0 0.5rem;
  border-radius: 50%;
  cursor: pointer;
  font-family: "Helvetica Neue", "Helvetica", "Arial", sans-serif;
  font-size: 2.5rem;
  text-decoration: none;
  transition: all 0.15s ease;

  &:hover {
    color: #fff;

    .tooltip {
      visibility: visible;
      opacity: 1;
      transform: translate(-50%, -150%);
    }
  }
    
  &:active {
    box-shadow: 0px 1px 3px rgba(0, 0, 0, 0.5) inset;
  }
  
  &--linkedin { @include social-icon($color-linkedin); }
  &--twitter { @include social-icon($color-twitter); }
  &--codepen { @include social-icon($color-codepen); }
  &--facebook { @include social-icon($color-facebook); }
  &--instagram { @include social-icon($color-instagram); }
  &--dribbble { @include social-icon($color-dribbble); }
  &--github { @include social-icon($color-github); }
  
  i {
    position: relative;
    top: 1px;
  }
}

/* Tooltips */
.tooltip {
  display: block;
  position: absolute;
  top: 0;
  left: 50%;
  padding: 0.8rem 1rem;
  border-radius: 40px;
  font-size: 0.8rem;
  font-weight: bold;
  opacity: 0;
  pointer-events: none;
  text-transform: uppercase;
  transform: translate(-50%, -100%);
  transition: all 0.3s ease;
  z-index: 1;
  
  &:after {
    display: block;
    position: absolute;
    bottom: 1px;
    left: 50%;
    width: 0;
    height: 0;
    content: "";
    border: solid;
    border-width: 10px 10px 0 10px;
    border-color: transparent;
    transform: translate(-50%, 100%);
  }
}
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