<div class="wrapper">
  <a href="#" class="btn">Hover Me</a>
</div>

html {
  font-size: 20px;
  box-sizing: border-box;
}

body {
  background-color: #1abc9c;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
  overflow: hidden;
}

.btn {
  border: 5px solid #2c3e50;
  color: #2c3e50;
  display: block;
  font-family: 'trebuchet ms';
  font-size: 2rem;
  letter-spacing: 0.1rem;
  padding: 1rem;
  position: relative;
  text-decoration: none;
  text-transform: uppercase;
}

.btn::before {
  content: "";
  background-color: #E26A6A;
  box-shadow: 10px 10px 0 #F1C40F, 
              20px 20px 0 #3498DB;
  position: absolute;
  left: 0.25rem;
  top: 0.5rem;
  height: 102%;
  width: 102%;
  z-index: -1;
  transition: all 0.4s ease;
}

.btn:hover::before {
  box-shadow: none;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
}

// Created for codepad.co
// https://codepad.co/snippet/wWCOtEUC