At page Load div is not hiding text

At page Load div should hide Text but开发者_运维问答 it is not hiding

<div id="div1" style="width: 1px; height: 1px;">
    Hello.................................<br />
    Hello.................................<br />
    Hello.................................<br />
    .......
</div>

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Add overflow:auto to the div:

<div id="div1" style="width: 1px; height: 1px;overflow:auto;">
    Hello.................................<br />
    Hello.................................<br />
    Hello.................................<br />
    .......
</div>

The overflow declaration tells the browser what to do with content that doesn't fit in a box.
More information here: http://www.quirksmode.org/css/overflow.html

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Try adding overflow:hidden to your style: <div id="div1" style="width:1px; height:1px; overflow:hidden">