.error-modal {
    position: fixed;
    top: 20px;
    left: 0;
    right: 0;
    width: 60%;
    margin: 0 auto;
    padding: 10px;
    border-radius: 5px;
    background-color: #f8d7da;
    border: 0.5px solid #f1aeb5;
    color: #58151c;
    z-index: 1000;
    text-align: center;
    line-height: 150%;
    box-shadow: 10px 10px 25px -10px;
    text-decoration: underline;
    opacity: 1;
    transition: opacity 0.5s ease; /* opacityの変化をアニメーション化 */
}

.error-modal-hidden {
    opacity: 0;
}

.error-modal-triangle {
    height: calc(30px / 2);
    width: 60px;
    margin-top: 5px;
    background-color: #58151c;
}

@media (max-width: 769px) {
    .error-modal {
        width: 90%;
        text-align: left;
    }
}
.error-modal {
    position: fixed;
    top: 20px;
    left: 0;
    right: 0;
    width: 60%;
    margin: 0 auto;
    padding: 10px;
    border-radius: 5px;
    background-color: #f8d7da;
    border: 0.5px solid #f1aeb5;
    color: #58151c;
    z-index: 1000;
    text-align: center;
    line-height: 150%;
    box-shadow: 10px 10px 25px -10px;
    text-decoration: underline;
    opacity: 1;
    transition: opacity 0.5s ease; /* opacityの変化をアニメーション化 */
}

.error-modal-hidden {
    opacity: 0;
}

.error-modal-triangle {
    margin-top: 5px;
    background-color: #58151c;
}

@media (max-width: 769px) {
    .error-modal {
        width: 90%;
        text-align: left;
    }
}