集中md卡角材料

Question

我使用角度6和角度材料，但没有任何作用。 我想把我的登录卡放在页面中间

HTML：

<mat-card class="card" layout-align="center center">
  <form (ngSubmit)="onSubmit(UserLogin)">
    <div class="container">
      <mat-form-field>
        <input matInput placeholder="E-mail" [formControl]="email" required>
        <mat-error *ngIf="email.invalid">{{getErrorMessage()}}</mat-error>
      </mat-form-field>
      <mat-form-field>
        <input matInput placeholder="Senha" [type]="hide ? 'password' : 'text'" [formControl]="password">
        <mat-icon matSuffix (click)="hide = !hide">{{hide ? 'visibility' : 'visibility_off'}}</mat-icon>
      </mat-form-field>
      <div>
        <button mat-raised-button color="accent" type="submit">Entrar</button>
      </div> 
    </div>
  </form>
</mat-card>

Answer 1

在组件的css文件中添加它

:host{
  display: flex;
  min-height: 100vh;
}
mat-card{
  margin: auto;
}

Answer 2

您可以使用position:absolute与left和top定位，transform应该可以工作

 * { margin: 0; padding: 0; box-sizing: border-box; } body { position: relative; height: 100vh; } form { border: 1px solid; display: inline-block; padding: 20px; position: absolute; top: 50%; left: 50%; transform: translateX(-50%) translateY(-50%); } 

 <form> <div><input type="text" placeholder="First Name" name=""></div> <div><input type="text" placeholder="Last Name" name=""></div> <div><input type="text" placeholder="Email" name=""></div> </form>