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編輯您的代碼：
<html> <head> </head> <body> <div style="border:1px solid black;width:200px;height:200px;overflow:auto"> This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. This is some text. </div> <button class="btn1">把 scroll top offset 設(shè)置為 100px</button> <br /> <button class="btn2">獲得 scroll top offset</button> </body> </html>
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請在上面的文本框中編輯您的代碼，然后單擊提交按鈕測試結(jié)果。
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