.container button {
    width: 100px;
    height: 100px;
}
.container {
    display: flex;
    flex-direction: column;
}
.container button {

    margin: 100px;
}
.modalContainer {
    position: fixed;
    top: 0;
    left: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    width: 100vw;
    z-index: 100;
    background-color: rgba(0, 0, 0, 0.5);
}

.modal {
    background-color: white;
    height: 200px;
    width: 200px;
    position: relative;
    border-radius: 10px;
}

.closeModalButton {
    position: absolute;
    right: -10px;
    top: -10px;
}

.hidden {
    visibility: hidden;
}

.visible {
    display: flex;
}