add js demos for chapter 3: manipulate, classlist, create, events, preventdefault, todo, fetch, localstorage

2026-04-20 13:14:56 +02:00
parent 754ff9436c
commit 7626852ac1
25 changed files with 664 additions and 0 deletions
--- a/slides/223015c/assets/demos/js-classlist.html
+++ b/slides/223015c/assets/demos/js-classlist.html
@@ -0,0 +1,42 @@
+<!DOCTYPE html>
+<html lang="de">
+<head>
+  <meta charset="UTF-8">
+  <title>classList</title>
+  <style>
+    body { font-family: system-ui, sans-serif; padding: 1.5rem; }
+    h3 { margin: 0.5rem 0 0.4rem; font-size: 0.85rem; color: #6b7280; text-transform: uppercase; letter-spacing: 0.04em; }
+    .box {
+      padding: 16px 20px;
+      border: 2px solid #9ca3af;
+      border-radius: 6px;
+      background: #f3f4f6;
+      margin-bottom: 14px;
+    }
+    .box.aktiv {
+      border-color: #16a34a;
+      background: #dcfce7;
+      color: #14532d;
+      font-weight: 600;
+      box-shadow: 0 0 0 3px rgba(22, 163, 74, 0.2);
+    }
+    button {
+      font: inherit;
+      padding: 8px 14px;
+      border-radius: 6px;
+      border: 1px solid #9ca3af;
+      background: #fff;
+      cursor: pointer;
+    }
+  </style>
+</head>
+<body>
+  <h3>.box ohne Klasse</h3>
+  <div class="box">inaktiv</div>
+
+  <h3>.box mit classList.add("aktiv")</h3>
+  <div class="box aktiv">aktiv ✓</div>
+
+  <button>classList.toggle("aktiv")</button>
+</body>
+</html>