Introduction of jQuery #Beginner

index.html

<!DOCTYPE html>
<html lang="ja">
<head>
     <meta charset="utf-8">
     <title>jQuery Practice</title>
</head>
<body>
     <h1>jQuery</h1>

     // Reading jQuery
     <script src="http://code.jquery.com/jquery-1.9.1.min.js"></script>
     <script>
          // When Readling html has done, start to execute jQuery
          $(document).ready(function(){
               // Write here jQuery Code
          }
     </script>
</body>
</html>

As comments, you should get ready to use and code jQuery like above.

But this is not normally used style.
You can rewrite like this.

index.html

<script>
    $(function(){
        hogehoge
    }
</script>

And one more, if you want to use jQuery in local to some reasons, e.g. keep site speed, you should download jQuery code from here->http://jquery.com/, and write like this.

index.html

<script src="~~(path)~~~/jquery-1.9.1.min.js"></script>

anyway this is first step to use jQuery.