.cta-subtitle p > a {
    border: 4px solid #fff;
    color: #fff;
    font-size: 2rem;
    font-weight: 600;
    padding: 15px 65px 15px 38px;
    position: relative;
    text-decoration: none;
    transition: all 0.4s ease-in-out;
    -webkit-transition: all 0.4s ease-in-out;
    -moz-transition: all 0.4s ease-in-out;
    -o-transition: all 0.4s ease-in-out;
    -ms-transition: all 0.4s ease-in-out;
}
.cta-subtitle p > a:hover {
    background-color: #fff;
    border-color: #fff;
    color: #111;
    transition: all 0.4s ease-in-out 0s;
}
.cta-subtitle p > a::before {
    content: "";
    font-family: FontAwesome;
    font-size: 2rem;
    height: 25px;
    position: absolute;
    right: 30px;
    top: 16px;
    transition: all 0.4s ease-in-out 0s;
    width: 25px;
}