卡片内的 Material Design Web 1.0 网格布局挂在左侧答案

【问题标题】：Material Design Web 1.0 grid layout within card hangs on the left卡片内的 Material Design Web 1.0 网格布局挂在左侧
【发布时间】：2019-05-03 13:14:10
【问题描述】：

我正在试验具有以下代码的 Material Design Web 1.0：

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8"/>
    <meta http-equiv="Content-Security-Policy" content="default-src 'self' https://fonts.gstatic.com; script-src 'unsafe-inline' https://unpkg.com; style-src 'unsafe-inline' https://unpkg.com https://fonts.googleapis.com"/>
    <meta http-equiv="x-ua-compatible" content="ie=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>Test</title>

    <link href="https://unpkg.com/material-components-web@latest/dist/material-components-web.css" rel="stylesheet"/>
    <script src="https://unpkg.com/material-components-web@latest/dist/material-components-web.js"></script>
    <link rel="stylesheet" href="https://fonts.googleapis.com/icon?family=Material+Icons"/>
    <style>
      .my-card-content 
       {
        padding: 16px;
       }
    </style>
  </head>
  <body>
    <div class="mdc-card my-card-content">

      <div class="mdc-layout-grid">
        <div class="mdc-layout-grid__inner">
          <div class="mdc-layout-grid__cell"><label class="mdc-floating-label" for="username">Username</label></div>
          <div class="mdc-layout-grid__cell">
            <div class="mdc-text-field">
              <input type="text" id="username" class="mdc-text-field__input" required  tabindex="0">
              <div class="mdc-line-ripple"></div>
            </div>
          </div>
        </div>
        <div class="mdc-layout-grid__inner">
          <div class="mdc-layout-grid__cell"><label class="mdc-floating-label" for="password">Password</label></div>
          <div class="mdc-layout-grid__cell">
            <div class="mdc-text-field">
              <input type="password" id="password" class="mdc-text-field__input" required  minlength="8"  tabindex="0">
              <div class="mdc-line-ripple"></div>
            </div>
          </div>
        </div>
      </div>
    </div>
  </body>
</html>

我真正想要的是将用户名/密码标签/字段置于卡片的中心，但目前看起来像这样：

我觉得奇怪的是用户名/密码标签挂在卡的左侧...

如何将布局更改为我所期望的？有没有办法在没有网格布局的情况下做到这一点？

【问题讨论】：

标签： html css material-design

【解决方案1】：

您可以尝试删除（在您的标签元素上）：

class="mdc-floating-label"

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8"/>
    <meta http-equiv="Content-Security-Policy" content="default-src 'self' https://fonts.gstatic.com; script-src 'unsafe-inline' https://unpkg.com; style-src 'unsafe-inline' https://unpkg.com https://fonts.googleapis.com"/>
    <meta http-equiv="x-ua-compatible" content="ie=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>Test</title>

    <link href="https://unpkg.com/material-components-web@latest/dist/material-components-web.css" rel="stylesheet"/>
    <script src="https://unpkg.com/material-components-web@latest/dist/material-components-web.js"></script>
    <link rel="stylesheet" href="https://fonts.googleapis.com/icon?family=Material+Icons"/>
    <style>
      .my-card-content 
       {
        padding: 16px;
       }
    </style>
  </head>
  <body>
    <div class="mdc-card my-card-content">

      <div class="mdc-layout-grid">
        <div class="mdc-layout-grid__inner">
          <div class="mdc-layout-grid__cell"><label for="username">Username</label></div>
          <div class="mdc-layout-grid__cell">
            <div class="mdc-text-field">
              <input type="text" id="username" class="mdc-text-field__input" required  tabindex="0">
              <div class="mdc-line-ripple"></div>
            </div>
          </div>
        </div>
        <div class="mdc-layout-grid__inner">
          <div class="mdc-layout-grid__cell"><label for="password">Password</label></div>
          <div class="mdc-layout-grid__cell">
            <div class="mdc-text-field">
              <input type="password" id="password" class="mdc-text-field__input" required  minlength="8"  tabindex="0">
              <div class="mdc-line-ripple"></div>
            </div>
          </div>
        </div>
      </div>
    </div>
  </body>
</html>

【讨论】：

【解决方案2】：

一个月后，我删除了 mdc-layout-grid 并更改了整个内容：

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8"/>
    <meta http-equiv="Content-Security-Policy" content="default-src 'self' https://fonts.gstatic.com; script-src 'unsafe-inline' https://unpkg.com; style-src 'unsafe-inline' https://unpkg.com https://fonts.googleapis.com"/>
    <meta http-equiv="x-ua-compatible" content="ie=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>Test</title>
    <link href="https://unpkg.com/material-components-web@latest/dist/material-components-web.css" rel="stylesheet"/>
    <script src="https://unpkg.com/material-components-web@latest/dist/material-components-web.js"></script>
    <link rel="stylesheet" href="https://fonts.googleapis.com/icon?family=Material+Icons"/>
    <style>
      .my-card-content 
       {
        padding: 16px;
       }
    </style>
  </head>
  <body>
    <div class="mdc-card my-card-content">
      <div class="mdc-card__primary-action" tabindex="0">
        <div class="">
          <div>
            <div class="mdc-text-field">
              <label class="mdc-floating-label" for="username">Username</label>
              <input type="text" id="username" class="mdc-text-field__input" required tabindex="0" autocorrect="off" autocomplete="off" spellcheck="false">
            </div>
          </div>
          <br/>
          <div>
            <div class="mdc-text-field">
              <label class="mdc-floating-label" for="password">Password</label>
              <input type="password" id="password" class="mdc-text-field__input" required minlength="8" tabindex="0" aria-controls="password-helper-text" aria-describedby="password-helper-text">
            </div>
          </div>
        </div>
      </div>
    </div>
  </body>
</html>

哪个更好看：

【讨论】：