Question

我正在尝试为巨型波谱仪添加背景图像，我已经看到了很多示例，但是代码中似乎没有任何作用。

在src下创建了css文件夹

<template> <div class="development container"> <div class="jumbotron mt-3"> <h1 class="display-3">Sofware Development</h1>

CSS文件代码 .jumbotron mt-3 { background-image: url('../empowers/src/assets/team1.jpg'); background-size: cover; height: 100%;}

Answer 1

.jumbotron{
    background-image: url('http://placehold.jp/006699/cccc00/150x100.png');
    background-size: cover;
    height: 100%;}

<!doctype html>
<html lang="en">
  <head>
    <!-- Required meta tags -->
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">

    <!-- Bootstrap CSS -->
    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" crossorigin="anonymous">
 
 <div class="development container">
  <div class="jumbotron mt-3">
   <h1 class="display-3">Sofware Development</h1>
</div>
</div>
    <!-- Optional JavaScript -->
    <!-- jQuery first, then Popper.js, then Bootstrap JS -->
    <script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js" integrity="sha384-UO2eT0CpHqdSJQ6hJty5KVphtPhzWj9WO1clHTMGa3JDZwrnQq4sF86dIHNDz0W1" crossorigin="anonymous"></script>
    <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js" integrity="sha384-JjSmVgyd0p3pXB1rRibZUAYoIIy6OrQ6VrjIEaFf/nJGzIxFDsf4x0xIM+B07jRM" crossorigin="anonymous"></script>
  </body>
</html>

您只需要使用jumbotron作为类即可在其上应用背景图像。

Answer 2

如下所示：

.jumbotron {
    background-image: url('http://getbootstrap.com/docs/4.3/assets/brand/bootstrap-social.png');
    background-size: cover;
    height: 100%;
  }

<div class="development container">
  <div class="jumbotron mt-3">
   <h1 class="display-3">Sofware Development</h1>
  </div>
</div>

将背景图像添加到巨无霸

2 个答案: