.modal {
    position: fixed;
    z-index: 5;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}

.modal__overlay {
    position: absolute;
    top: 0;
    right: 0;
    left: 0;
    bottom: 0;
    z-index: 6;
    background-color: rgba(0,0,0,.6);
}

.modal__content {
    z-index: 7;
    position: relative;
    margin: 100px auto;
    background-color: #fff;
    border-radius: 3px;
}

.modal__header {
    padding: 10px;
    position: relative;
    background-color: #ececec;
    border-bottom: 1px solid silver;
    border-radius: 3px 3px 0 0;
}

.modal__body {
    padding: 10px;
}

.modal__actions {
    display: flex;
    justify-content: flex-end;
    padding: 10px;
    background-color: #ececec;
    border-radius: 0 0 3px 3px;
}