<div class="button">
  <p class="button-message">Hover on me!</p>
</div>
body {
  background-color: #fff;
  font-family: Verdana, sans-serif;
  font-weight: bold;
}

.button {
  -moz-transition: all 0.15s ease-in-out;
  -o-transition: all 0.15s ease-in-out;
  -webkit-transition: all 0.15s ease-in-out;
  transition: all 0.15s ease-in-out;
  background-color: #5FD9FF;
  color: #3a3a3a;
  font-size: 14px;
  letter-spacing: 1px;
  margin: 6em auto 3em;
  max-width: 15em;
  padding: 1em;
  position: relative;
  cursor: pointer;
  text-align: center;
  text-transform: uppercase;
}

.button:after {
  -moz-transition: all 0.15s ease-in-out;
  -o-transition: all 0.15s ease-in-out;
  -webkit-transition: all 0.15s ease-in-out;
  transition: all 0.15s ease-in-out;
  content: "";
  border: solid transparent;
  border-top-color: #5FD9FF;
  height: 0;
  width: 0;
  left: 50%;
  position: absolute;
  pointer-events: none;
  border-width: 20px;
  margin-left: -20px;
  bottom: -2.2em;
}

.button:hover {
  background-color: #5AE2FF;
  margin: 6.15em auto 2.85em;
}

.button:hover:after {
  bottom: -2.65em;
  border-top-color: #5AE2FF;
}

.button-message {
  color: #fff;
}
/*
  Developed with love by Blu Frame

  http://blufra.me  
*/
Rerun