diff --git a/Projects/1-Beginner/Bin2Dec b/Projects/1-Beginner/Bin2Dec
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+++ b/Projects/1-Beginner/Bin2Dec
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+Subproject commit 7c088ea5ca9cf9647c9e857e1ceb2ff3b6d649b8
diff --git a/Projects/1-Beginner/Border-radius-Previewer/README.md b/Projects/1-Beginner/Border-radius-Previewer/README.md
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diff --git a/Projects/1-Beginner/Border-radius-Previewer/index.html b/Projects/1-Beginner/Border-radius-Previewer/index.html
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+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Dynamic Border Radius</title>
+    <link rel="stylesheet" href="style.css">
+</head>
+
+<body>
+    <div class="container">
+        <h1>Border-radius Previewer</h1>
+
+        <div class="preview-box" id="previewBox"></div>
+
+        <div class="controls">
+            <div class="control_group">
+                <label>T-left: <input type="range" min="0" max="100" value="0" id="topLeft"></label>
+                <label>B-left: <input type="range" min="0" max="100" value="0" id="bottomLeft"></label>
+            </div>
+            <div class="control_group">
+                <label>T-right: <input type="range" min="0" max="100" value="0" id="topRight"></label>
+                <label>B-right: <input type="range" min="0" max="100" value="0" id="bottomRight"></label>
+            </div>
+        </div>
+
+        <div class="css-output">
+            <input type="text" id="cssCode" readonly>
+            <button id="copyBtn">Copy</button>
+        </div>
+    </div>
+
+    <script src="index.js"></script>
+</body>
+
+</html>
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diff --git a/Projects/1-Beginner/Border-radius-Previewer/index.js b/Projects/1-Beginner/Border-radius-Previewer/index.js
new file mode 100644
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+++ b/Projects/1-Beginner/Border-radius-Previewer/index.js
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+const previewBox = document.getElementById('previewBox');
+const topLeft = document.getElementById('topLeft');
+const topRight = document.getElementById('topRight');
+const bottomRight = document.getElementById('bottomRight');
+const bottomLeft = document.getElementById('bottomLeft');
+const cssCode = document.getElementById('cssCode');
+const copyBtn = document.getElementById('copyBtn');
+
+function updateBorderRadius() {
+    const tl = topLeft.value + '%';
+    const tr = topRight.value + '%';
+    const br = bottomRight.value + '%';
+    const bl = bottomLeft.value + '%';
+
+    const radius = `${tl} ${tr} ${br} ${bl}`;
+    previewBox.style.borderRadius = radius;
+    cssCode.value = `border-radius: ${radius};`;
+}
+
+// Event listeners
+[topLeft, topRight, bottomRight, bottomLeft].forEach(input => {
+    input.addEventListener('input', updateBorderRadius);
+});
+
+// Copy CSS to clipboard
+copyBtn.addEventListener('click', () => {
+    cssCode.select();
+    cssCode.setSelectionRange(0, 99999);
+    document.execCommand('copy');
+    alert('CSS copied to clipboard!');
+});
+
+// Initialize preview
+updateBorderRadius();
diff --git a/Projects/1-Beginner/Border-radius-Previewer/style.css b/Projects/1-Beginner/Border-radius-Previewer/style.css
new file mode 100644
index 00000000..f1f09818
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+++ b/Projects/1-Beginner/Border-radius-Previewer/style.css
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+body {
+    font-family: Arial, sans-serif;
+    display: flex;
+    justify-content: center;
+    align-items: center;
+    height: 100vh;
+    background: #f4f4f4;
+}
+
+h1 {
+    margin: 0;
+    padding: 0;
+}
+
+.container {
+    background: white;
+    height: fit-content;
+    padding: 16px 32px;
+    border-radius: 10px;
+    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
+    text-align: center;
+}
+
+.controls {
+    display: flex;
+    font-size: 12px;
+}
+
+.control_group {
+    flex: 1;
+    background-color: beige;
+    display: flex;
+    flex-direction: column;
+    align-items: center;
+}
+
+label {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+}
+
+input[type="range"] {
+    -webkit-appearance: none;
+    width: 100px;
+    height: 5px;
+    background: #ddd;
+    outline: none;
+    border-radius: 5px;
+    margin: 10px 0;
+}
+
+.preview-box {
+    width: 150px;
+    height: 150px;
+    background: #4CAF50;
+    margin: 20px auto;
+}
+
+.css-output {
+    display: flex;
+    margin-top: 20px;
+}
+
+#cssCode {
+    width: 80%;
+    padding: 5px;
+    font-family: monospace;
+    margin-right: 8px;
+}
+
+#copyBtn {
+    background-color: black;
+    color: white;
+    outline: none;
+    border: none;
+}
+
+#copyBtn:hover {
+    background-color: #45a049;
+    cursor: pointer;
+}
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