.orcpc-box {
    max-width: 420px;
    padding: 20px;
    border: 1px solid #ddd;
    background: #fff;
    border-radius: 8px;
}
.orcpc-box select,
.orcpc-box button {
    width: 100%;
    margin: 10px 0;
    padding: 8px;
}
#result {
    margin-top: 15px;
    font-size: 16px;
}