.btn {
    position: relative;
  
    display: flex;
    align-items: center;
    margin: 20px auto;
    padding: 10px 15px;
    text-decoration: none;;
    overflow: hidden;
  
    border-width: 0;
    outline: none;
    border-radius: 2px;
    box-shadow: 0 1px 4px rgba(0, 0, 0, .6);
    
    background-color: #3481e5;
    color: #ecf0f1;
    
    transition: background-color .3s;
  }
  
  
  .btn.secondary
  {
      background-color: #cc0e47;
  }
  
  .btn.secondary:hover,.btn.secondary:focus
  {
      background-color: #a10735;
  }
  .btn:hover, .btn:focus {
    background-color: #0f5dc3;
  }
  
  .btn > * {
    position: relative;
  }
  
  .btn span {
    display: block;
    font-size:1.5rem;
    padding-right: 10px;
  }
  
  .btn:before {
    content: "";
    
    position: absolute;
    top: 50%;
    left: 50%;
    
    display: block;
    width: 0;
    padding-top: 0;
      
    border-radius: 100%;
    
    background-color: rgba(236, 240, 241, .3);
    
    -webkit-transform: translate(-50%, -50%);
    -moz-transform: translate(-50%, -50%);
    -ms-transform: translate(-50%, -50%);
    -o-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
  }
  
  .btn:active:before {
    width: 120%;
    padding-top: 120%;
    
    transition: width .2s ease-out, padding-top .2s ease-out;
  }
  
  /* Styles, not important */
  *, *:before, *:after {
    box-sizing: border-box;
  }
  
  h2{
      color: #444;
  }