body {
    background-size: cover;
    height: 100vh;
}

.overlay {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.7);
    transition: opacity 500ms;
    visibility: visible;
    opacity: 1;
    pointer-events: auto;
}

.overlay:target {
    visibility: hidden;
    opacity: 0;
}

.popup {
    margin: 150px auto;
    padding: 70px;
    background: #fff;
    border-radius: 5px;
    width: 40%;
    position: relative;
    transition: all 5s ease-in-out;
}

    .popup h2 {
        margin-top: initial;
        color: #e8651b;
        font-family: Tahoma, Arial, sans-serif;
        text-align: center;
    }

    .popup .close {
        position: absolute;
        top: 20px;
        right: 30px;
        transition: all 200ms;
        font-size: 30px;
        font-weight: bold;
        text-decoration: none;
        color: #333;
    }

        .popup .close:hover {
            color: #06D85F;
        }

    .popup .content {
        max-height: 30%;
        overflow: auto;
    }

@media screen and (max-width: 700px) {
    .popup {
        width: 70%;
    }
}