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How wide is the default `<body>` margin?

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梦谈多话
梦谈多话 2020-11-21 04:51

What’s the default margin that HTML sets for its tag? I noticed that there’s some automatic margin, but I’m wondering if anyone knows

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  • 迷失自我
    2020-11-21 05:11

    According to W3School's CSS reference, the default properties and values for a body tag are,

    body{ display : block; margin : 8px; }

    And one can quickly get the computed details of any element by accessing the Computed Pane in the Chrome Dev tools.

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  • 情话喂你
    2020-11-21 05:23

    In most major browsers, the default margin is 8px on all sides. It is defined in pixels by the user-agent-stylesheet your browser provides.

    Some browsers allow you to create and use your own user-agent-stylesheet, but if you are developing a website, I would recommend staying away from changing this, since your users most likely will not have a modified stylesheet and would then see a different page than you do.

    If you want to change it, you can just do this:

    body {
  margin: 0px;
  padding: 0px;
  ...
}

    But if you have a large project and want to be more complete, use normalize.css. It resets a lot of default values to be consistent across browsers.

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