.js-modal {
    position: fixed;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: start;
    justify-content: center;
    z-index: 9999;
    top: 0;
    left: 0;
    /* IE11は非対応です。調べたところpolyfillもなさそうでした。 */
    backdrop-filter: blur(2px);
    --modal-center-point: calc(300 / 2);
}

.js-modal-content {
    position: fixed;
    top: 25vh; /*高さ800pxの画面に対して上から200pxに表示する*/
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    background: #fff;
}
.js-modal-content-header {
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: #707070;
    margin: 0;
    height: 32px;

}

.js-modal-content-header h2 {
    color: #fff;
    font-weight: normal;
    font-size: 12px;
    margin: 0;
}

.js-modal-content-body {
    padding-top: 12px;
    font-size: 12px;
    flex-grow: 1;
}

.js-modal-content-body-spaced {
    padding: 28px;
    font-size: 12px;
}

.js-modal-content-body-more-spaced {
    width: 324px;
    margin: auto;
    font-size: 12px;
}

.js-modal-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding-left: 48px;
    padding-right: 48px;
    padding-bottom: 16px;
    gap: 16px;
}

.js-modal-footer .btn-2 {
    width: 80px;
}