button {
    font-size: 19px;
    color: #fafafa;
    width: 100%;
    padding: 6px;
    background-color: #28a745;
    background-image: linear-gradient(-180deg, #34d058, #28a745 90%);
}

.info {
    margin-top: 10px;
}

#prompt_board {
    height: 20px;
}

#prompt {
    color: red;
    font-size: 15px;
    margin-top: 20px;
}

.label {
    font-size: 20px;
}

.edit_area {
    font-size: 20px;
    width: 100%;
    height: 38px;
    padding: 5px;
}

#center_board {
    width: 320px;
}

#center_center {
    width: 85%;
    height: auto;
    margin: 0px auto;
}

#btn_board {
    margin-top: 10px;
    text-align: center;
}