body {
    margin: 0;
    padding: 0;
}
.box-1 {
    background-color: black;
    opacity: 0.8;
    position: fixed;
    z-index: 100000;
    display: none;
    top: 0;
    left: 0;
}
.box-main {
    position: relative;
    width: 100vw;
    height: 100vh;
}
.box {
    position: absolute;
    left: 50%;
    top: 50%;
    margin-left: -490px;
    margin-top: -350px;
    width: 980px;
    height: 700px;
}
.ytb_bg {
    width: 100%;
    height: 100%;
}
.close {
    text-align: center;
    width: 30px;
    height: 30px;
    line-height: 37px;
    border-radius: 50%;
    color: #ffffff;
    border: 1px solid #ffffff;
    position: absolute;
    top: -30px;
    right: -30px;
    cursor: pointer;
}
.close-icon {
    width: 20px;
    height: 20px;
}
.notice {
    position: absolute;
    width: 280px;
    height: 48px;
    line-height: 48px;
    text-align: center;
    right: 35%;
    top: 43%;
    background-color: #000000;
    border-radius: 24px;
    opacity: 0.6;
    color: #ffffff;
    font-size: 18px;
}
.bigImage {
    width: 100%;
    object-fit: contain;
    font-family: 'object-fit: contain;';
}