jQuery/jQuery HTML_01.html at master · RobbieLiu/jQuery · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script src="http://ajax.microsoft.com/ajax/jquery
/jquery-1.4.min.js"></script>

    <style>
        #box1{
            height:50px;
            background:yellow;
        }
        #box2{
            height:200px;
            background:blue;
            /*display:none;*/
        }
    </style>

    <script>
       $(function(){
           $('#box1').mouseleave(function(){
               $('#box2').slideDown();
           });
       });
    </script>

    <script>
        $(function(){
            $('#box1').click(function(){
                $('#box2').slideUp();
            });
        });
    </script>

    <script>

        $(function(){
            console.log($('h1').text());

            $('button').click(function(){
                $('h1').text('set text..');
                $('input').val('tom');
            });

        });

    </script>

    <script>
            $(function(){
                $('button').click(function(){
                    alert('HTML:'+$('h1').html());
                });
            });
    </script>
</head>
<body>

<div id="box1"></div>
<div id="box2"></div>
<h1>headine...</h1>
<input type="text">
<button>val</button>
</body>
</html>