如何在有角材料中将垫子卡居中? [英] How to center mat-card in angular materials?

问题描述

我有一个使用棱角材料设计的登录卡，每当在页面上运行该登录卡时，内容都会粘贴在页面左侧.

I have a login card that I designed using angular materials, whenever I run it on the page the content sticks to the left of the page.

我尝试使用flex和layout-align="center center"，但仍然无法将卡带到页面中心

I tried using flex and using layout-align="center center" but I still cannot bring the card to the center of the page

我在做什么错了?

这是我的html:

<mat-card class="example-card" layout="row" layout-align="center center">
  <mat-card-header>
    <div class="login-box-header" layout="row" layout-align="center center">
        <img src="https://image.ibb.co/hDqa3p/codershood.png">
    </div>
  </mat-card-header>
  <mat-card-content>
    <form class="example-form">
      <table class="example-full-width" cellspacing="0">
        <tr>
          <td>
            <mat-form-field class="example-full-width">
            <input matInput placeholder="Username" [(ngModel)]="username" name="username" required>
            </mat-form-field>
          </td>
        </tr>
        <tr>
        <td><mat-form-field class="example-full-width">
          <input matInput placeholder="Password" [(ngModel)]="password"type="password" name="password" required>
        </mat-form-field></td>
      </tr></table>
    </form>
    <mat-spinner [style.display]="showSpinner ? 'block' : 'none'"></mat-spinner>
  </mat-card-content>
  <mat-card-actions>
    <button mat-raised-button (click)="login()" color="primary">Login</button>
  </mat-card-actions>
</mat-card>

这是内容仍未居中的地方:

and here is the content still not centered:

推荐答案

使用非常简单的Flex修复了该问题

Fixed it by using Very simple Flex

.main-div{
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}

并用类包装所有内容

<!-- Classes main-div and example-card are catagorized in .css file -->
<div class="main-div">

<mat-card class="example-card">
  <mat-card-header>
    <div class="login-box-header">
        <!-- Src image is temporary hosted in image.ibb-->
        <img src="https://image.ibb.co/hDqa3p/codershood.png">
    </div>
  </mat-card-header>
  <mat-card-content>
    <form class="example-form">
      <table class="example-full-width" cellspacing="0">
        <tr>
          <td>
            <mat-form-field class="example-full-width">
            <input matInput placeholder="Username" [(ngModel)]="username" name="username" required>
            </mat-form-field>
          </td>
        </tr>
        <tr>
        <td><mat-form-field class="example-full-width">
          <input matInput placeholder="Password" [(ngModel)]="password"type="password" name="password" required>
        </mat-form-field></td>
      </tr></table>
    </form>
    <mat-spinner [style.display]="showSpinner ? 'block' : 'none'"></mat-spinner>
  </mat-card-content>
  <mat-card-actions>
    <button mat-raised-button (click)="login()" color="primary">Login</button>
  </mat-card-actions>
</mat-card>

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