.modal {
    display: none;
    position: fixed;
    z-index: 1;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, .4);
    justify-content: center;
    align-items: center
}

.modal-content {
    background-color: #fff;
    padding: 20px;
    border: 1px solid #888;
    width: 80%;
    max-width: 600px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, .3);
    border-radius: 8px;
    height: 60%
}

.close1,
.close2,
.close3 {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: 700
}

.close1:focus,
.close1:hover,
.close2:focus,
.close2:hover,
.close3:focus,
.close3:hover {
    color: #000;
    text-decoration: none;
    cursor: pointer
}

#close-popup {
    all: initial;
    font: inherit;
    cursor: pointer
}