Header Content Footer 布局

<!doctype html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Tailwind CSS Box Layout</title>
    <script src="https://cdn.tailwindcss.com"></script>
    <style type="text/tailwindcss">
      html,
      body {
        font-family: ui-monospace, SFMono-Regular, SF Mono, Menlo, Consolas, Liberation Mono, monospace;
        color: #c9d1d9;
        background-color: #0d1117;
      }
    </style>
  </head>

  <body>
    <div id="box" class="flex flex-col h-screen justify-between">
      <header class="border-b p-5">Header</header>
      <main class="flex flex-1 flex-col justify-center items-center mb-auto h-auto bg-gray-900">Content</main>
      <footer class="flex justify-center items-center border-t border-gray-800 p-6">Footer</footer>
    </div>
  </body>
</html>

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内容部分占满页面的剩余高度

<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Dock.Full</title>
  <style type="text/css">
    html,
    body,
    #full {
      color: #EFEFEF;
      background-color: #423F3E;
      margin: 0;
      padding: 0;
      height: 100%;
    }

    #full {
      background-color: #171010;
      display: flex;
      flex-direction: column;
    }

    #someid {
      background-color: #362222;
      flex-grow: 1;
    }
  </style>
</head>

<body>
  <div id="full">
    <div id="header">Dock.Top</div>
    <div id="someid">Dock.Full</div>
  </div>
</body>

</html>

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登录框居中显示

<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <style type="text/css">
    html,
    body,
    #parent {
      color: #EFEFEF;
      background-color: #423F3E;
      margin: 0;
      padding: 0;
      height: 100%;
    }

    #parent {
      background-color: #171010;
      /* 使用Flex布局 */
      display: flex;
      /* 主轴位于中间 */
      justify-content: center;
      /* 交叉轴位于中间 */
      align-items: center;
    }

    #someid {
      background-color: #362222;
      width: 200px;
      height: 200px;
    }
  </style>
</head>

<body>
  <div id="parent">
    <div id="someid">Dialog Content</div>
  </div>
</body>

</html>

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