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                            #### 頁面寬高(整個頁面)
~~~
document.documentElement.scrollWidth
document.documentElement.scrollHeight
~~~

#### 頁面可視區域的寬高
~~~
document.documentElement.clientWidth
document.documentElement.clientHeight
~~~

#### 頁面某個元素真實的寬高
~~~
document.getElementById('div1').offsetWidth
document.getElementById('div1').offsetHeight
~~~

#### 頁面中某個元素真實的位置
~~~
document.getElementById("div").offsetLeft
document.getElementById("div").offsetTop
~~~
                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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