我有一个视频源，位于我的网页中间。我希望能够将其向左移动。过去使用过 div 和 CSS 标签的位置：绝对;左：60像素;顶部：180像素;我知道如何移动物体。出于某种原因，这似乎是不同的。它如何保持在页面的中间是我的一个很大的好奇心。断续器<!DOCTYPE html><html><head> <meta charset="utf-8"> <meta name="description" content="WebRTC code samples"> <meta name="viewport" content="width=device-width, user-scalable=yes, initial-scale=1, maximum-scale=1"> <meta itemprop="description" content="WebRTC RPI-WebRTC-Stream Testing Page"> <meta itemprop="image" content="images/webrtc-icon-192x192.png"> <meta itemprop="name" content="Raspberry WebRTC Stream"> <meta name="mobile-web-app-capable" content="yes"> <meta id="theme-color" name="theme-color" content="#ffffff"> <base target="_blank"> <link rel="icon" sizes="192x192" href="images/webrtc-icon-192x192.png"> <link href="//fonts.googleapis.com/css?family=Roboto:300,400,500,700" rel="stylesheet" type="text/css"> <link rel="stylesheet" href="css/main.css" /></head><body> <div id="container"> <video id="remoteVideo" autoplay playsinline controls muted width="100%" height="100%"></video> <div> <button id="Connect">Connect</button> <button id="Disconnect">Disconnect</button> </div> </div> <!-- <script src="js/lib/adapter.js"></script> --> <script src="js/common.js"></script> <!-- <script src="js/main_rws_orig.js"></script> --> <script src="js/sdputils.js"></script> <script src="js/peerconnection_client.js"></script> <script src="js/websocket_signaling.js"></script> <script src="js/main_rws.js"></script> <script src="https://webrtc.github.io/adapter/adapter-latest.js"></body></html>
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