stenciljs-modal-overlay__styling.css

.modal {
    display:none;
    position: fixed;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgb(0,0,0);
    background-color: rgba(0,0,0, 0.2);

    z-index: 1;
}

.active{
    display: flex;
}

.modal__content {
    position: relative;
    margin: auto;
    padding: 25px;
    width: 50%;
    background-color: white;
    border: 1px solid #ccc;
    border-radius: 5px;
    box-shadow: 0 1px 1px rgba(144, 142, 139, 0.3);
}

.close {
    position: absolute;
    top: 5px;
    right: 15px;
    color: #aaaaaa;
    font-size: 28px;
    font-weight: bold;
    text-decoration: none;
    cursor: pointer;
}