.modal-en {
    display: none;
    position: fixed;
    z-index: 1;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
}
.modal-en .content {
    position: fixed;
    left: 50%;
    top : 50%;
    transform: translateX(-50%) translateY(-50%);
    width: 500px;
    max-width: 80%;
    background: #fff;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
    font-weight: bold;
    padding: 20px 40px;
}
.modal-en .content .text {
    margin-bottom: 1.5em;
}
.modal-en .content .text .title {
    text-align: center;
    font-size: 150%;
    margin-bottom: 1em;
}
.modal-en .content .button {
    text-align: center;
}
.modal-en .content .button .close {
    display: inline-block;
    background: #666;
    text-align: center;
    color: #fff;
    cursor: pointer;
    margin: 0 auto;
    padding: .2em 2em;
}
.modal-en.show {
    display: block !important;
    animation: fade-in 1s;
    animation-fill-mode: forwards;
}
@keyframes fade-in {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}