How to get div and full inner content in javascript?

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I want get div inner content in javascript Ex:\[code\]<div id="content" style="height: 20px; overflow: hidden"> content<br>content<br>content<br></div>\[/code\]This is my html code. i know only div id (content). but i want retrieved main div and their inner content via javascript like..\[code\]<div id="content" style="height: 20px; overflow: hidden"> content<br>content<br>content<br></div>\[/code\]Also i want retrieved content div attribute also like style, class name etc.