.popup-whole {
    position: fixed;
    top: 0;
    z-index: 6;
    width: 100vw;
    height: 100vh;
    background-color: rgba(0,0,0,0.6);
    color: #ffffff;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.popup-box {
    background-color: #353a40;
    width: 400px;
    text-align: center;
    padding: 15px;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    justify-content: space-between;
    border-radius: 5px;
}

.popup-button {
    width: 100%;
    border-radius: 5px;
    height: calc(2rem + 20px);
    font-size: 1.5rem;
    margin-top: 40px;
    background-color: rgb(108,117,125);
    border-style: none;
    color: white;
}

.popup-button:hover {
    background-color: rgb(90,98,104);
}