angular-material2工具栏阴影

Question

我是材料2的新手我试图将主应用工具栏固定在屏幕顶部,问题是高程不正常(内容隐藏了工具栏的阴影)我这是我的HTML代码

.app-content {
  height: calc(100% - 64px);
  overflow: auto;
}

<md-toolbar class="mat-elevation-z5" color="primary" style="z-index: 100!important;">

  <button md-icon-button (click)="start.open()">
      <md-icon class="demo-toolbar-icon">menu</md-icon>
    </button>
  <span>E-Learning</span>

  <span class="demo-fill-remaining"></span>
</md-toolbar>
<div class="app-content" style="z-index: 0!important;">
  <div class="workspace">
    <el-teacher></el-teacher>
  </div>
</div>

Answer 1

您必须为元素提供位置相对/绝对/固定/静态以使z-index工作.

.mat-elevation-z5 {
   position: relative;
   z-index: 2;
}