body.modal-open {
    overflow: hidden;
    height: 100%;
}

.ReactModalContainer .backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
}

.ReactModalContainer .centering {
    width: 700px;
    margin: 0 auto;
}
.ReactModalContainer .centering .content {
    position: fixed;
    width: 700px;
    z-index: 1001;
    background-color: white;
    color: red;
    top: 100px;
    padding: 2rem;
}