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+<!DOCTYPE html>
+<html>
+
+<head>
+    <meta charset="utf-8">
+    <title>buttom</title>
+    <link rel="stylesheet" href="buttom.css">
+</head>
+
+<body>
+    <!-- <div class="buttom_active">
+    <button class="buttom" >test</button>
+  <button class="buttom" >test</button>
+    <button class="buttom" >test</button>
+  <button class="buttom" >test</button>
+</div> -->
+<div class="para">
+
+
+    <ul>
+        <li>
+            <h1><a href="https://ssearch.oreilly.com/?q=CSS%3A+The+Definitive+Guide&x=0&y=0"></a>CSS: The Definitive Guide</h1></li>
+        <li>
+            <p>By Eric A. Meyer</p>
+        </li>
+        <li>Publisher: O'Reilly Media</li><br>
+        <li>Release Date: December 2016</li>
+    </ul>
+    <div class="img">
+        <img src="https://akamaicovers.oreilly.com/images/0636920041429/cat.gif" alt="">
+      </div>
+    </div>
+
+
+    <script src="buttom.js" charset="utf-8">
+    </script>
+</body>
+
+</html>
