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                            > 
> 當鼠標移動到圖片上的時候，黑色蒙版緩慢顯示
> 

## css
~~~
<style type="text/css">
    #out{
    ? width:100px;
    ? height:100px;
    ? background:black;
    ? }
    #inner{
    ? ?width:100px;
    ? ?height:100px;
    ? ?display:none;
    ? ?background:red;
    }
</style>
~~~

* * * * *
## html
~~~
<div id="out">
    <div id="inner"></div>
</div>
~~~


* * * * *
## js
~~~
<script>
    function (){
        $('#inner').fadeIn(1000);
    }
    function (){
        $('#inner').fadeOut(1000);
    }
</script>
~~~

 

>  注意 jquery 大小寫
                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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