.red_line {
    display: block;
    margin: 2rem auto 2rem;
    background: #fc0000;
    height: 2px;
    width: 8.6rem;
}

.main_page_icon {
    max-width: 70px;
    left: 50%;
    position: absolute;
    top: -2.5rem;
    transform: translateX(-50%);
}

.drag-file-leave {
    width: 80%;
    height: 150px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: white;
    border: 3px dashed #dbdbdb;
    background-image: url("../img/image-file.png");
    background-position: center;
    background-repeat: no-repeat;
}

.drag-file-enter {
    width: 80%;
    height: 150px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: white;
    border: 3px dashed #000;
    background-image: url("../img/image-file.png");
    background-position: center;
    background-repeat: no-repeat;
}

/* move top - 상단이동 */
.move-top {
    border-radius: 50%;
    bottom: 20px;
    background: transparent;
    color: #000;
    cursor: pointer;
    height: 60px;
    padding: 13px;
    position: fixed;
    right: 20px;
    width: 60px;
    font-size: 2.25rem;
}

.move-top:hover {
    background: #3b7ddd;
    color: #fff
}

.move-top.hidden-top {
    right: -100px;
    opacity: 0
}