Index: src/views/pages/post.ejs
===================================================================
--- src/views/pages/post.ejs	(revision adb6291578046e2adec69d0fd51408d163b671ed)
+++ src/views/pages/post.ejs	(revision 65a0697853444cff6053e2eac6a69bcf4453c597)
@@ -201,5 +201,5 @@
 .post-page { max-width: 720px; margin: 0.5rem auto 2rem; padding: 0 1rem; }
 .post-cover { margin: 0 0 2rem; border-radius: 8px; overflow: hidden; }
-.post-cover img { width: 100%; height: auto; display: block; }
+.post-cover img, .post-cover video { width: 100%; height: auto; display: block; }
 .post-header { margin-bottom: 2rem; }
 .post-title { font-family: var(--font-display, serif); font-size: 2.5rem; line-height: 1.1; margin: 0 0 1rem; }