.secret {
    padding: 12px;
    background-color: #FFEAE9;
    border: solid 1px #FF281D;
    border-radius: 8px;
    color: #FF281D;
    box-sizing: border-box;
    margin-top: 12px;
    margin-bottom: 12px;
}

.secret::before {
    content: "ユーザ非表示";
    opacity: 0.8;
    display: inline-block;
    margin-right: 12px;
    font-size: 0.75rem;

}