diff --git a/27 - Click and Drag/changi.html b/27 - Click and Drag/changi.html
new file mode 100644
index 0000000..f9e6511
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+++ b/27 - Click and Drag/changi.html	
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+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <title>Click and Drag</title>
+    <link rel="stylesheet" href="style.css" />
+  </head>
+  <body>
+    <div class="items">
+      <div class="item item1">01</div>
+      <div class="item item2">02</div>
+      <div class="item item3">03</div>
+      <div class="item item4">04</div>
+      <div class="item item5">05</div>
+      <div class="item item6">06</div>
+      <div class="item item7">07</div>
+      <div class="item item8">08</div>
+      <div class="item item9">09</div>
+      <div class="item item10">10</div>
+      <div class="item item11">11</div>
+      <div class="item item12">12</div>
+      <div class="item item13">13</div>
+      <div class="item item14">14</div>
+      <div class="item item15">15</div>
+      <div class="item item16">16</div>
+      <div class="item item17">17</div>
+      <div class="item item18">18</div>
+      <div class="item item19">19</div>
+      <div class="item item20">20</div>
+      <div class="item item21">21</div>
+      <div class="item item22">22</div>
+      <div class="item item23">23</div>
+      <div class="item item24">24</div>
+      <div class="item item25">25</div>
+    </div>
+
+    <script>
+      const slider = document.querySelector(".items");
+      let isDown = false;
+      let startX;
+      let scrollLeft;
+
+      slider.addEventListener("mousedown", (evt) => {
+        isDown = true;
+        slider.classList.add("active");
+
+        startX = evt.pageX - slider.offsetLeft;
+        scrollLeft = slider.scrollLeft;
+      });
+      slider.addEventListener("mouseleave", (evt) => {
+        isDown = false;
+        slider.classList.remove("active");
+      });
+      slider.addEventListener("mouseup", (evt) => {
+        isDown = false;
+        slider.classList.remove("active");
+      });
+      slider.addEventListener("mousemove", (evt) => {
+        if (!isDown) return;
+        evt.preventDefault();
+
+        const x = evt.pageX - slider.offsetLeft;
+        const walk = x - startX;
+
+        slider.scrollLeft = scrollLeft - walk;
+      });
+    </script>
+  </body>
+</html>
