@keyframes glo {
    0% {
        box-shadow: 0 0 0 0 rgba(255, 255, 255, 1);
    }

    50% {
        box-shadow: 0 2px 7px 7px rgba(255, 255, 255, .9);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(255, 255, 255, 1);
    }
}

button {
    cursor: pointer;
    border-radius: 68%;
}

.button { /* 인문 YouTube 1 */
    position: absolute;

    animation-duration: 2s;
    animation-name: glo;
    animation-iteration-count: infinite;
    cursor: pointer;
    border-radius: 68%;

    width: 50px;
    height: 50px;
}

.layer-popup {
    display: none;
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 100;
}

.layer-popup.show {
    display: block;
}

.content-popup {
    display: none;
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 100;
    overflow: hidden;
}

.content-popup.sh {
    display: block;
}

.modal-dialog {
    position: relative;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 80vw;
}

.modal-content {
    padding: 10px 15px;
    text-align: center;
    line-height: 100px;
}

* {
    box-sizing: border-box;
    padding: 0;
    margin: 0;
}

.back-content {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 100%;
}

.back {
    position: absolute;
    /*height: 100%;*/
    /*width: 100%;*/
    background-size: 100% 100%;
    background-repeat: no-repeat;

}

.view {
    position: absolute;
    top: 0;
    left: 0;
    height: 100vh;
    width: 100vw;
    overflow: hidden;
}

.popup {
    width: 700px;
    height: 455px;
}

.descPop {
    width: 100%;
    height: 700px;
}

.youtubePop {
    width: 1180px;
    height: 700px;
}