.btn-primary {
    color: #fff;
    background-color: #85a9dd;
    border-color: #6088c2;
}

.btn-primary:hover,
.btn-primary:focus,
.btn-primary:visited,
.btn-primary:active,
.btn-primary:active:focus{
    color: #fff;
    background-color: #85a9dd;
    border-color: #6088c2;
    opacity: 0.75;
}