Improve image handling & fix shadows

src/page/figure/video/video.ts

@@ -0,0 +1,19 @@
+import { Figure } from '../figure';
+import { VideoParameters } from './video-parameters';
+import { generate } from './video.html';
+
+export class Video extends Figure {
+  public constructor(options: VideoParameters) {
+    super(generate(options), {
+      hasButton: true,
+      invertButton: options.invertButton,
+    });
+  }
+
+  protected async onClick() {
+    this.query('.start-button').style.visibility = 'hidden';
+    this.htmlRoot.classList.add('loaded');
+
+    await (this.query('video') as HTMLVideoElement).play();
+  }
+}