.fa {
    padding: 42px;
    font-size: 65px !important;
    width: 50px;
    text-align: center;
    text-decoration: none;
    /* background: #f4742b; */
    color: white;
    -webkit-transition: color 1s ease-out;
    -moz-transition: color 1s ease-out;
    -o-transition: color 1s ease-out;
    transition: color 1s ease-out;
  }
  .fa:hover {
    /* transition: opacity 0.2s 1s ease; */
    opacity: 0.9;
    color: #f4742b;
  }