.ser-head {padding-bottom: 30px;}
.ser-head .head {text-align: center;}
.ser-head .sub-head {text-align: center;}
.ser-btn {
        text-align: center;
}
.btn-call {
    background: red;
    color: #fff;
    padding: 6px 10px;
    font-weight: 600;
}
.btn-wp {
    background: green;
    color: #fff;
    padding: 6px 10px;
    font-weight: 600;
}
.btn-call:hover,
.btn-wp:hover {
    color: #fff;
}