diff --git a/script.js b/script.js
index 8bc98d5..f99177a 100644
--- a/script.js
+++ b/script.js
@@ -3,11 +3,7 @@ function generateHtml() {
 		document.querySelector("#episode_name").value &&
 		document.querySelector("#castopod").value &&
 		document.querySelector("#peertube").value &&
-		document.querySelector("#youtube").value &&
-		document.querySelector("#castopod-player-visible").value &&
-		document.querySelector("#peertube-player-visible").value &&
-		document.querySelector("#audio-links-visible").value &&
-		document.querySelector("#video-links-visible").value
+		document.querySelector("#youtube").value
 	) {
 		let castopod_url;
 		let peertube_id;
@@ -16,19 +12,20 @@ function generateHtml() {
 				.querySelector("#castopod").value;
 			const regex = /^https:\/\/podcast\.internet-czas-dzialac\.pl\/@icd\/episodes\//;
 			if (!regex.test(castopod_url)) {
-
-				throw new Error("Incorrect Castopod URL format! Please paste the correct URL.");
+				throw new Error("Incorrect Castopod URL format! Please paste the correct URL. Example: https://podcast.internet-czas-dzialac.pl/@icd/episodes/icd-weekend-6-stara-myszka-mickey-nowy-prezes-uodo-i-sony-psujace-sylwestra");
 			}
 		} catch (error) {
 			alert(error);
 		}
 
 		try {
+			const regex = /^https:\/\/video\.internet-czas-dzialac\.pl\/w\/[a-zA-Z0-9]{22,}$/;
 			peertube_id = document
 				.querySelector("#peertube")
 				.value.split("/w/")[1];
-			if (!peertube_id) {
-				throw new Error("Incorrect PeerTube URL format! Please paste the correct URL.");
+
+			if (!regex.test(document.querySelector("#peertube").value) || !peertube_id) {
+				throw new Error("Incorrect PeerTube URL format! Please paste the correct URL. Example: https://video.internet-czas-dzialac.pl/w/nTgqnY7FJLQzNYfD9xtcSy");
 			}
 		} catch (error) {
 			alert(error);
@@ -154,7 +151,7 @@ function generateHtml() {
 			html += `
 <div class="podcast-logos video-logos">
 	<a
-		title="${document.querySelector("#episode_name").value} w serwisie PeerTube."
+		title="${document.querySelector("#episode_name").value} na naszej instancji PeerTube."
 		alt="Logo PeerTube"
 		href="https://video.internet-czas-dzialac.pl/videos/watch/${peertube_id}"
 	>
diff --git a/style.css b/style.css
index 5760b6e..bac636c 100644
--- a/style.css
+++ b/style.css
@@ -85,6 +85,7 @@ button {
 }
 
 .preview {
+	width: 700px;
 	padding: 1rem;
 	border: 1px solid #5e636e;
 }