.btn-whats-contrate{
    color: #fff;
    background: green;
}
.btn-whats-contrate:hover{
    color: #fff;
    background: #049704;
    -webkit-box-shadow: 0 .5rem 1rem rgba(22,28,45,.15)!important;
    box-shadow: 0 .5rem 1rem rgba(22,28,45,.15)!important;
}