删除标签后保留背景图片
问题描述：
我正在通过设计网页来了解webdev，并希望登录页面具有背景图像，但后续页面不适用。我的index.html页面扩展了base.html模板。我使用body标签来应用背景图片来覆盖页面。但我想从results.html视图中删除，因此在results.html我使用header.html扩展仅标头视图。在header.html布局中，我消除了body标记，但背景图像仍然以某种方式保留。删除标签后保留背景图片
任何帮助初学者非常感谢。
base.html文件
{% load staticfiles %}
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- The above 3 meta tags *must* come first in the head; any other head content must come *after* these tags -->
<meta name="description" content="">
<meta name="author" content="">
<link rel="icon" href="../../favicon.ico">
<title>me</title>
<!-- Bootstrap core CSS -->
<link href="{% static 'css/bootstrap.min.css' %}" rel="stylesheet">
<!-- IE10 viewport hack for Surface/desktop Windows 8 bug -->
<link href="{% static 'css/ie10-viewport-bug-workaround.css' %}" rel="stylesheet">
<!-- Custom styles for this template -->
<link href="{% static 'css/cover.css' %}" rel="stylesheet">
<!-- Just for debugging purposes. Don't actually copy these 2 lines! -->
<!--[if lt IE 9]><script src="../../assets/js/ie8-responsive-file-warning.js"></script><![endif]-->
<script src="{% static 'js/ie-emulation-modes-warning.js' %}"></script>
<!-- HTML5 shim and Respond.js for IE8 support of HTML5 elements and media queries -->
<!--[if lt IE 9]>
<script src="https://oss.maxcdn.com/html5shiv/3.7.3/html5shiv.min.js"></script>
<script src="https://oss.maxcdn.com/respond/1.4.2/respond.min.js"></script>
<![endif]-->
</head>
<body>
<!-- Static navbar -->
<nav class="navbar navbar-default">
<div class="container-fluid">
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar" aria-expanded="false" aria-controls="navbar">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a class="navbar-brand" href="#">Logo</a>
</div>
<ul class="nav navbar-nav navbar-right">
<li class="active"><a href="./">About Us <span class="sr-only">(current)</span></a></li>
<li><a href="#">Log In</a></li>
<li><a href="#">Sign Up</a></li>
</ul>
</div><!--/.nav-collapse -->
</div><!--/.container-fluid -->
</nav>
{% block main_content %}
{% endblock %}
<div class="mastfoot">
<div class="inner">
<p>me, 2016 | <a href="https://twitter.com/me">@me</a></p>
</div>
</div>
<!-- Bootstrap core JavaScript
================================================== -->
<!-- Placed at the end of the document so the pages load faster -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<script>window.jQuery || document.write('<script src="../../assets/js/vendor/jquery.min.js"><\/script>')</script>
<script src="../../dist/js/bootstrap.min.js"></script>
<!-- IE10 viewport hack for Surface/desktop Windows 8 bug -->
<script src="../../assets/js/ie10-viewport-bug-workaround.js"></script>
</body>
</html>
的index.html
{% extends "search/base.html" %}
{% block main_content %}
<div class="site-wrapper">
<div class="site-wrapper-inner">
<div class="cover-container">
<div class="inner cover">
<h1 class="cover-heading"></h1>
<p class="lead col-xs-6 ">Search
<input type="text" class="form-control" placeholder="">
</p>
<p class="lead col-xs-6 ">Location
<input type="text" class="form-control" placeholder="City, State or Zipcode">
</p>
<p class="lead">
<a href="#" class="btn btn-lg btn-default">Search</a>
</p>
</div>
</div>
</div>
</div>
{% endblock %}
了header.html
{% load staticfiles %}
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- The above 3 meta tags *must* come first in the head; any other head content must come *after* these tags -->
<meta name="description" content="">
<meta name="author" content="">
<link rel="icon" href="../../favicon.ico">
<title>me</title>
<!-- Bootstrap core CSS -->
<link href="{% static 'css/bootstrap.min.css' %}" rel="stylesheet">
<!-- IE10 viewport hack for Surface/desktop Windows 8 bug -->
<link href="{% static 'css/ie10-viewport-bug-workaround.css' %}" rel="stylesheet">
<!-- Custom styles for this template -->
<link href="{% static 'css/cover.css' %}" rel="stylesheet">
<!-- Just for debugging purposes. Don't actually copy these 2 lines! -->
<!--[if lt IE 9]><script src="../../assets/js/ie8-responsive-file-warning.js"></script><![endif]-->
<script src="{% static 'js/ie-emulation-modes-warning.js' %}"></script>
<!-- HTML5 shim and Respond.js for IE8 support of HTML5 elements and media queries -->
<!--[if lt IE 9]>
<script src="https://oss.maxcdn.com/html5shiv/3.7.3/html5shiv.min.js"></script>
<script src="https://oss.maxcdn.com/respond/1.4.2/respond.min.js"></script>
<![endif]-->
</head>
<div>
{% block main_content %}
{% endblock %}
</div>
<!-- Bootstrap core JavaScript
================================================== -->
<!-- Placed at the end of the document so the pages load faster -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<script>window.jQuery || document.write('<script src="../../assets/js/vendor/jquery.min.js"><\/script>')</script>
<script src="../../dist/js/bootstrap.min.js"></script>
<!-- IE10 viewport hack for Surface/desktop Windows 8 bug -->
<script src="../../assets/js/ie10-viewport-bug-workaround.js"></script>
</html>
答
所有网页需要<body>元素，所以你不能离开它。有很多方法可以解决这个问题，但它们都是围绕在结果页面上放置最后加载的css来告诉它没有背景图像。
用于演示的权利之前在header.html中你</head>标签添加代码
<style>
body {background-image: none;}
</style>
谢谢。我认为这意味着'body'在这里覆盖了'body' css？准确地说是 – Jebediah15
。如果你愿意的话，你实际上可以有一个页面特定的样式表。只需在主样式表之后加载它。 CSS规则基于最后列出的规则取得优势。 – dprogramz