1 <html> 2 <head> 3 <style> 4 body { 5 background: white; 6 display: -webkit-flex; 7 -webkit-justify-content: center; 8 -webkit-align-items: center; 9 -webkit-flex-direction: column; 10 } 11 video { 12 width: 640px; 13 height: 480px; 14 border: 1px solid #e2e2e2; 15 box-shadow: 0 1px 1px rgba(0,0,0,0.2); 16 } 17 </style> 18 </head> 19 <body> 20 <video id="video" autoplay></video> 21 <p><button id="start">Start</button><button id="cancel">Cancel</button></p> 22 <script src="app.js"></script> 23 </body> 24 </html> 25
