.mcc-converter {
    max-width: 100%;
    margin: 30px auto;
    padding: 20px;
    background: #f9f9f9;
    border: 1px solid #ddd;
    border-radius: 8px;
    text-align: center;
}
.mcc-converter input,
.mcc-converter select,
.mcc-converter button {
    margin: 10px 5px;
    padding: 10px;
    width: calc(100% - 20px) !important;
    border:1px solid #ddd;
}

.mcc-converter button[type=submit] { background: #F77A1D; color:#FFF; font-weight: bold; }

#mcc-result {
    margin-top: 20px;
    font-size: 1.2em;
    text-align: left;
}

.mcc-result-box { padding: 30px; background:#f5f5f5; }
.mcc-result-box .res-rate { font-size: 14px; font-style: italic; }