diff --git a/Week-01/Day_03/index.html b/Week-01/Day_03/index.html
new file mode 100644
index 0000000..eda37f5
--- /dev/null
+++ b/Week-01/Day_03/index.html
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+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <title>Day 3 CSS Task</title>
+    
+    <!-- Linking the external CSS file -->
+    <link rel="stylesheet" href="style.css">
+</head>
+<body>
+
+    <div class="container">
+        <h1>My Internship Journey</h1>
+
+        <section class="card">
+            <h2>About Me</h2>
+            <p>I am learning <strong>CSS</strong> today to make my web pages look beautiful and organized.</p>
+        </section>
+
+        <section class="card">
+            <h2>Skills I am Learning</h2>
+            <ul class="skills-list">
+                <li>HTML5 Structure</li>
+                <li class="active">CSS3 Basics</li>
+                <li>JavaScript Logic</li>
+            </ul>
+        </section>
+
+        <a href="#" class="btn">Contact Me</a>
+    </div>
+
+</body>
+</html>
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diff --git a/Week-01/Day_03/style.css b/Week-01/Day_03/style.css
new file mode 100644
index 0000000..1c10289
--- /dev/null
+++ b/Week-01/Day_03/style.css
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+body {
+    font-family: 'Arial', sans-serif;
+    background-color: #f4f4f9;
+    color: #333;
+    line-height: 1.6;
+    margin: 0;
+    padding: 20px;
+}
+
+.container {
+    max-width: 600px;
+    margin: 0 auto;
+}
+
+.card {
+    background: white;
+    padding: 20px;
+    margin-bottom: 20px;
+    border-radius: 8px;
+    border-left: 5px solid #007bff;
+    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
+}
+
+h1 {
+    color: #007bff;
+    text-align: center;
+}
+
+.skills-list {
+    list-style-type: square;
+}
+
+.active {
+    color: green;
+    font-weight: bold;
+}
+
+.btn {
+    display: inline-block;
+    background: #007bff;
+    color: white;
+    padding: 10px 20px;
+    text-decoration: none;
+    border-radius: 5px;
+    transition: background 0.3s;
+}
+
+.btn:hover {
+    background: #0056b3;
+}
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