您可以使用纯CSS实现这一点。这是你问题的可靠替代品。

取决于您的小部件是否具有唯一ID（如id="widget-358" 或id="my-video-widget"), 您可以设置CSS规则，使其在屏幕上的固定位置浮动：

#my-video-widget {
    /* required */
    position: fixed;

    /* change to your needs */
    top: 0px; /* to float it from the bottom of the screen, use the \'bottom\' directive */
    left: 0px; /* to float it on the right hand side, use the \'right\' directive */

    /* optional */
    z-index: 10; /* depends if elements on your page are already layered, and if you want your video to float above everything else */
}