#returnBack {
    position: absolute;
    top: 20%;
    left: calc(50% - 290px);
    z-index: 12;
}

#returnBack .using-regulation {
    width: 580px;
    padding: 0 60px 40px;
    outline: #E0C551 solid 20px;
    background-color: #FFFFFF;
}

@media (max-width: 1199px) {
    #returnBack .using-regulation {
        padding: 0 30px 40px;
    }
}

@media (max-width: 767px) {
    #returnBack .using-regulation {
        padding: 0 10px 20px;
        outline: #E0C551 solid 10px;
    }
}

#returnBack .using-regulation .using-title {
    width: 185px;
    color: #E0C551;
    font-size: 24px;
    text-align: center;
    font-weight: 600;
    margin: 10px auto;
    letter-spacing: 1px;
}

@media (max-width: 767px) {
    #returnBack .using-regulation .using-title {
        font-size: 18px;
    }
}

#returnBack .using-regulation .using-content {
    height: 90%;
    color: #808080;
    font-size: 16px;
    letter-spacing: 2px;
    overflow: scroll;
}

@media (max-width: 767px) {
    #returnBack .using-regulation .using-content {
        font-size: 14px;
    }
}

#returnBack .using-regulation ::-webkit-scrollbar {
    position: relative;
    width: 5px;
}

#returnBack .using-regulation ::-webkit-scrollbar-track {
    border-radius: 10px;
}

#returnBack .using-regulation ::-webkit-scrollbar-thumb {
    background-color: rgba(224, 197, 81, 0.6);
    border-radius: 10px;
    opacity: 1;
}

#returnBack .lightbox-content {
    margin: auto;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border: 3px solid #fff;
    -webkit-box-shadow: 0 0 8px rgba(0, 0, 0, 0.3);
    box-shadow: 0 0 8px rgba(0, 0, 0, 0.3);
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
    height: 0%;
    width: 0%;
    -webkit-transition: .5s ease-in-out;
    transition: .5s ease-in-out;
}

#returnBack {
    position: fixed;
    top: -100%;
    left: 273.92px;
    width: calc(100% - 273.92px);
    opacity: 0;
    -webkit-transition: .5s ease-in-out;
    transition: .5s ease-in-out;
    overflow: hidden;
}

#returnBack {
    opacity: 1;
    top: 0;
    bottom: 0;
    background-image: url("../img/lightbox-bg.png");
}

#returnBack .lightbox-content {
    width: 580px;
    outline: #E0C551 solid 5px;
    max-height:550px;
    height: fit-content;
}

@media (max-width: 1199px) {
    #returnBack .lightbox-content {
        width: 60%;
    }
}

@media (max-width: 767px) {
    #returnBack .lightbox-content {
        width: 95%;
        height: 480px;
    }
}

@media (max-height: 800px) {
    #returnBack .lightbox-content {
        height: 95vh;
    }
}

#returnBack .lightbox-close {
    top: 2.5%;
}

#returnBack .lightbox-close {
    display: block;
    width: 20px;
    height: 20px;
    box-sizing: border-box;
    position: relative;
    left: 105%;
}

@media (max-width: 1199px) {
    #returnBack .lightbox-close {
        left: 90%;
    }
}

@media (max-width: 1199px) {
    #returnBack {
        width: 100%;
        height: 100%;
        left: 0px;
    }
}

#returnBack .lightbox-close img {
    width: 100%;
}

.using-content {
    font-size: 18px;
    margin-top: 10px;
}

.lightbox-closed {
    display: none;
}