#overlay {
    position: fixed; /* Sit on top of the page content */
    display: none; /* Hidden by default */
    width: 100%; /* Full width (cover the whole page) */
    height: 100%; /* Full height (cover the whole page) */
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5); /* Black background with opacity */
    z-index: 999; /* Specify a stack order in case you're using a different order for other elements */
}

.modal-image {
    border-radius: 5px;
}

.modal {
    text-align: center;
    margin: 100px auto;
    padding: 0;
    background: #fff;
    border: 1px solid #666;
    width: 350px;
    border-radius: 10px;
    box-shadow: 0 0 50px rgba(0, 0, 0, 0.5);
    position: relative;
}

.btn-close {
    position: absolute;
    text-decoration: none !important;
    color: black;
    font-weight: bolder;
    padding: 5px 15px;
    background-color: #fff;
    left: 100%;
    cursor: pointer;
    border-radius: 0 5px 0 0;
    transform: translate(-100%);
}

.modal-body {
    font-size: 20px;
}