html - 样式化 Angular 组件

Question

我对 Angular 还是很陌生。我通过 cli 创建了一个名为 header 的组件。我已经为我想使用的导航栏添加了 html。我也有一些我想添加的CSS。我把它放在 scss 文件中，但它似乎不起作用。这是我的 CSS:

html,
body,
header,
.view {
    height: 100%;
}
/* Navigation*/

.navbar {
    background-color: transparent;
}

.top-nav-collapse {
    background-color: #4285F4;
}
@media only screen and (max-width: 768px) {
    .navbar {
        background-color: #4285F4;
    }
}
/*Intro*/
.view {
    background: url("https://mdbootstrap.com/img/Photos/Horizontal/Nature/12-col/img%20(54).jpg")no-repeat center center fixed;
    -webkit-background-size: cover;
    -moz-background-size: cover;
    -o-background-size: cover;
    background-size: cover;
}

这是我的 html:

<navbar SideClass="navbar navbar-toggleable-md navbar-dark introZindex fixed-top">
    <logo>
        <a class="logo navbar-brand">Navbar</a>
    </logo>
    <links>
        <ul class="navbar-nav mr-auto">
            <li class="nav-item active">
                <a class="nav-link">Home <span class="sr-only">(current)</span></a>
            </li>
            <li class="nav-item">
                <a class="nav-link">Features</a>
            </li>
            <li class="nav-item">
                <a class="nav-link">Pricing</a>
            </li>
        </ul>
        <ul class="navbar-nav nav-flex-icons">
            <li class="nav-item">
                <a class="nav-link"><i class="fa fa-facebook"></i></a>
            </li>
            <li class="nav-item">
                <a class="nav-link"><i class="fa fa-twitter"></i></a>
            </li>
            <li class="nav-item">
                <a class="nav-link"><i class="fa fa-instagram"></i></a>
            </li>
        </ul>
    </links>
</navbar>
<!-- Main -->
<div class="view hm-black-strong">
    <div class="full-bg-img flex-center">
        <div class="container">
            <div class="white-text text-center wow fadeInUp">
                <h2>This Navbar is fixed and transparent</h2>
                <br>
                <h5>It will always stay visible on the top, even when you scroll down</h5>
                <br>
                <p>Full page intro with background image will be always displayed in full screen mode, regardless of device </p>
            </div>
        </div>
    </div>
</div>
<!-- /.Main -->
<main class="text-center py-5 mt-3">
    <div class="container">
        <div class="row">
            <div class="col-md-12">
                <p align="justify">Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</p>
            </div>
        </div>
    </div>
</main>

这是ts文件:

import { Component, OnInit } from '@angular/core';

@Component({
  selector: 'app-header',
  templateUrl: './header.component.html',
  styleUrls: ['./header.component.scss']
})
export class HeaderComponent implements OnInit {

  constructor() { }

  ngOnInit() {
  }

}

这是我的 app.module.ts 文件:

import { BrowserModule } from '@angular/platform-browser';
import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
import { NgModule, NO_ERRORS_SCHEMA } from '@angular/core';
import { FormsModule } from '@angular/forms';
import { HttpModule } from '@angular/http';

import { AppComponent } from './app.component';

import { MDBBootstrapModule } from './typescripts/angular-bootstrap-md/free';
import { MDBBootstrapModulePro } from './typescripts/angular-bootstrap-md/pro';
import { AgmCoreModule } from '@agm/core';
import { HeaderComponent } from './header/header.component';

@NgModule({
  declarations: [
    AppComponent,
    HeaderComponent
  ],
  imports: [
    BrowserModule,
    BrowserAnimationsModule,
    FormsModule,
    HttpModule,
    MDBBootstrapModule.forRoot(),
    MDBBootstrapModulePro.forRoot(),
    // https://developers.google.com/maps/documentation/javascript/get-api-key?hl=en#key
    // AgmCoreModule.forRoot({
    //   apiKey: 'google_maps_api_key'
    // })
  ],
  providers: [],
  bootstrap: [AppComponent],
  schemas: [NO_ERRORS_SCHEMA]
})
export class AppModule { }

任何人都可以就我在这里做错了什么给我建议吗？我的 app.component.html 中唯一的东西是上面提到的组件的标签。

Answer 1

您没有为导航栏添加颜色，这是您看不到样式的唯一原因。如果您将 bg-primary 类(或任何其他具有您喜欢的颜色的类)添加到您的 SideClass 就足够了。