/* CSS 样式 */
body {
    max-width: 800px;
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    /*background-color: #f0f0f0;*/
}

* {
    margin: 0;
    padding: 0
}

.container {
    background-color: #fff;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

a {
    color: #000000;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/*img {*/
/*    max-width: 200px;*/
/*    max-height: 300px;*/
/*}*/

@media (max-width: 559px) {
    .video-item-class {
        margin: 0 10px 10px 0;
        width: calc(33.33% - 10px);
    }
}