Lekcja 1 - ćwiczenia i zadanie

Lekcja_01/cwE.html

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+<!DOCTYPE html>
+<html lang="pl">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>jQuery Lekcja 1</title>
+    <script src="lib/jquery.js"></script>
+    <script>
+        $(document).ready(function () {
+            let counter = 0
+
+            $("#d1").on("click", function () {
+                ++counter % 2 == 0 ? $("#d1").css("background-color", "green") : $("#d1").css("background-color", "red")
+                $("#d1").text(counter)                
+            })
+        })
+    </script>
+    <style>
+        #d1 {
+            width: 100px;
+            height: 100px;
+            background-color: green;
+            color: azure;
+            font-size: 2em;
+            display: flex;
+            justify-content: center;
+            align-items: center;
+        }
+    </style>
+</head>
+<body>
+    <div id="d1">0</div>
+</body>
+</html>