diff --git a/static/styles.css b/static/styles.css
index 5336a8a..ad44583 100644
--- a/static/styles.css
+++ b/static/styles.css
@@ -68,6 +68,16 @@ p {
   margin-top: 0.5em;
 }
 
+iframe {
+  width: 100%;
+  height: 500px;
+}
+@media (max-width: 580px) {
+  iframe {
+    height: 250px;
+  }
+}
+
 .background {
   position: fixed;
   top: 0;
diff --git a/static/styles.scss b/static/styles.scss
index a72116d..cc6641e 100644
--- a/static/styles.scss
+++ b/static/styles.scss
@@ -141,6 +141,13 @@ a {
 p {
   margin-top: 0.5em;
 }
+iframe {
+  width: 100%;
+  height: 500px;
+  @media (max-width: 580px) {
+    height: 250px;
+  }
+}
 .background {
   position: fixed;
   top: 0;
diff --git a/templates/head.html b/templates/head.html
index d414c17..d6e4565 100644
--- a/templates/head.html
+++ b/templates/head.html
@@ -60,5 +60,5 @@
   {{end}}
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <link rel="stylesheet" href="/njump/static/styles.css?v=20230604" />
+  <link rel="stylesheet" href="/njump/static/styles.css?v=20230606" />
 </head>
diff --git a/utils.go b/utils.go
index b94df8c..33e224a 100644
--- a/utils.go
+++ b/utils.go
@@ -285,7 +285,7 @@ func sanitizeXSS(html string) string {
 	p.AllowElements("video", "source", "iframe")
 	p.AllowAttrs("controls", "width").OnElements("video")
 	p.AllowAttrs("src", "width").OnElements("source")
-	p.AllowAttrs("height", "width", "src", "frameborder").OnElements("iframe")
+	p.AllowAttrs("src", "frameborder").OnElements("iframe")
 	return p.Sanitize(html)
 }