.c-form-submit-button {
    display: inline-block;
    width: 200px;
    padding: 8px;
    border: none;
    border-radius: 4px;
    background-color: #333;
    color: #fff;
    font-weight: bold;
    font-size: 24pt;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    cursor: pointer;
    border: 2px solid transparent;
}

.c-form-submit-button:hover {
    background-color: #000;
}

.c-form-submit-button:focus {
    outline: 0;
    background-color: #000;
    border: 2px solid rgb(33, 150, 243);
}