.form-btn-orange {
    border-radius: 5px;
    height: 50px;
    border: 0;
    font-size: 18px;
    line-height: 50px;
    padding: 0 15px;
    background: #FFF100;
    color: #000;
    transition: all 0.4s ease;
    display: inline-block;
}

option:checked,option:hover{
    background-color: #FFF100!important;
    color:#000;
    box-shadow: 0 0 10px 100px #FFF100 inset;
}