How can I get rid of margin around my HTML content?

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How can I get rid of margin around my HTML content?

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

The following HTML display fine.

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
    <head>
        <title>Hello</title>
    </head>
    <body>
        <div style="width: 100px; height: 100px; background: red;">
            <div>Hello</div>
        </div>
    </body>
</html>

However, there is a space of around 10 pixel between the left and top edges my div and the browser window. Is there a way to get rid of it so that the div is "glued" to the browser window?

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1 Answer

深蓝 · Answer 1 · 2021-10-17T00:50:16+0000

You could add CSS to the document....

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title>Hello</title>
    <style type="text/css">
    body { margin:0; }
    </style>
</head>
<body>
    <div style="width: 100px; height: 100px; background: red;">
        <div>Hello</div>
    </div>
</body>

Or you could add the CSS as an inline style

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title>Hello</title>
</head>
<body style="margin:0;">
    <div style="width: 100px; height: 100px; background: red;">
        <div>Hello</div>
    </div>
</body>
</html>

All browsers have a default margin around the top and left edge of the window. There's nothing wrong with your page. You merely need to tell the browser to remove the default margins.

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